0,4
Table of n, a(n) for n=0..7.
H. Cheballah, S. Giraudo, R. Maurice, Combinatorial Hopf algebra structure on packed square matrices, arXiv preprint arXiv:1306.6605, 2013
Sequence in context: A300626 A126282 A039627 * A309473 A349058 A051257
Adjacent sequences: A231494 A231495 A231496 * A231498 A231499 A231500
nonn,more
N. J. A. Sloane, Nov 09 2013
approved