0,2

L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 171, #33.

Sequence in context: A046245 A107699 A079330 this_sequence A069736 A058192 A054382

Adjacent sequences: A059364 A059365 A059366 this_sequence A059368 A059369 A059370

nonn

N. J. A. Sloane (njas(AT)research.att.com), Jan 28 2001