3,2

L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 60.

A column or diagonal of triangle in A008285.

Sequence in context: A035136 A128957 A034277 this_sequence A017802 A035738 A017749

Adjacent sequences: A055531 A055532 A055533 this_sequence A055535 A055536 A055537

nonn

N. J. A. Sloane (njas(AT)research.att.com), Jul 10 2000