matchings, see also 1-factorizations
matchings: see also tournaments
Matchings:: A005154
mathematical symbols in OEIS: see spelling and notation
matrices, (+1,-1): see matrices, binary
matrices, (0,1): see matrices, binary
matrices, alternating sign , sequences related to (start):
matrices, alternating sign: (1) A005130 *, A006366 *, A003827 , A005156 , A005158 , A005160 -A005164 , A048601 , A050204 , A051055 , A057629 , A059475 , A059476 , A059486
matrices, alternating sign: (2) A128445 , A109074 /A134357
matrices, alternating sign: see also Robbins numbers
matrices, anti-Hadamard: A005312 , A005313
matrices, binary , sequences related to (start):
matrices, binary - refers to matrices with entries of both types, real (or complex) or over a finite field
matrices, binary, 3 X n: A006381 , A002727
matrices, binary, 4 X n: A006380 , A006382 , A996148
matrices, binary, n X n: complex eigenvalues: A098148
matrices, binary, n X n: A000595 * (equivalence classes under S_n), A006383 (equivalence classes under S_n X S_n)
matrices, binary, n X n: det = 1: A086264
matrices, binary, n X n: diagonalizable: A091470 , A091471 , A091472
matrices, binary, n X n: eigenvalues all = 1 but not positive definite: see A085657
matrices, binary, n X n: invertible: A002884 * (over GF(2)), A055165 ({0,1}, rational)
matrices, binary, n X n: maximal determinant: A003432 *, A003433 *, A013588
matrices, binary, n X n: normal: A055547 A55548 A55549
matrices, binary, n X n: positive definite: A085656 (entries 0,1, rational), A085657 (entries 2,1,0, symmetric), A084552 (entries 2,-1,0, symmetric), A080858
matrices, binary, n X n: positive eigenvalues: A003024 (entries 0,1), A085506 (entries 0, +-1)
matrices, binary, n X n: positive semi-definite: A038379 (entries 0,1, rational), A085658 (entries 2,1,0, symmetric), A084553 (entries 2,-1,0, symmetric), A083029
matrices, binary, n X n: primitive: A070322
matrices, binary, n X n: singular: A000409 *, A000410 *, A046747 * (rational)
matrices, binary, n X n: with k 1's in each row and column: A000142 , A001499 , A001501 , A058528 , A075754
matrices, binary, n X n: zero permanent: A088672
matrices, binary, permanents of: A000255 A052655 A087981 A087982 A087983 A088672
matrices, binary, upper triangular: A005321 *
matrices, binary, with n 1's: A049311 *
matrices, binary, with no 2 adjacent 1's: A006506 *
matrices, binary, with no zero rows or columns: A048291 , A054976
matrices, binary: see also A002820 , A000804 , A000805 , A003509 , A005991 , A002724 , A005019 , A005020
matrices, binary: see also Hadamard matrices
matrices, binary: see also matrices, ternary
matrices, conference: A000952 *
matrices, cyclic: A000804 , A000805
matrices, Hadamard: see Hadamard matrices
Matrices, Hilbert, A005249
Matrices, incidence, A002725 , A002728
Matrices, modular, A005045 , A006045 , A005353
matrices, normal: A055547 A55548 A55549
Matrices, norms of, A004141
Matrices, Pascal, A006135 , A006136
Matrices, random, A001171
Matrices, Schur, A003112
Matrices, stochastic, A006847 , A006848 , A000987 , A000985 , A001495 , A000681 , A000986 , A001500 , A001499 , A001496 , A001501 , A005466 , A003438 , A005467 , A003439
matrices, ternary - refers to matrices with entries of both types, real (or complex) or over a finite field
matrices, ternary, n X n: A053290 , A056989
matrices, ternary, see also matrices, binary
Matrices:: A002136 , A005020 , A005045 , A007411 , A006045 , A005353 , A005019
matrix, coprime?: A005326 *
matroids , sequences related to (start):
matroids, triangle of number of: A034327 , A034328 , A058669 , A053534 , A058710 , A058711 , A058716 , A058717 , A058720 , A058730
matroids: A002773 *, A055545 *, A005387 *, A056642 *, A058673 *, A058712 *, A058718 *, A058721 *
matroids: see also A034329 A034330 A034331 A034332 A034333 A034334 A034335 A034336
Maundy cake: A006022
Max Alekseyev's problem: see doubling substrings
max(x,y): A003984 *, A051125 *
maximal intersecting families of sets: A007006 , A007007 , A007008