1,2

P. J. Nikolai, Permanents of incidence matrices, Math. Comp., 14 (1960), 262-266.

H. J. Ryser, Combinatorial Mathematics. Mathematical Association of America, Carus Mathematical Monograph 14, 1963, p. 124.

Adjacent sequences: A000791 A000792 A000793 this_sequence A000795 A000796 A000797

Sequence in context: A111429 A111430 A059332 this_sequence A088912 A055462 A088600

nonn

njas