2,1

P. F. Duvall, Jr., and P. W. Harley, III, A note on counting matrices, SIAM J. Appl. Math., 20 (1971), 374-377.

Kent E. Morrison, Integer Sequences and Matrices Over Finite Fields, Journal of Integer Sequences, Vol. 9 (2006), Article 06.2.1.

Kent Morrison, Matrices over F_q with no eigenvalues of 0 or 1

Index entries for sequences related to binary matrices

Reference gives a recurrence.

2^[n(n-1)/2] * A005327(n+1).

Cf. A002884.

Sequence in context: A087085 A067626 A053071 this_sequence A053290 A056989 A090770

Adjacent sequences: A002817 A002818 A002819 this_sequence A002821 A002822 A002823

nonn,nice,easy

njas

More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Mar 17 2000