4,2
Table of n, a(n) for n=4..10.
J. M. Møller, Euler characteristics of equivariant subcategories, arXiv preprint arXiv:1502.01317 [math.GR], 2015.
Sequence in context: A299521 A167164 A277265 * A010239 A320975 A222804
Adjacent sequences: A263628 A263629 A263630 * A263632 A263633 A263634
sign,more
N. J. A. Sloane, Oct 28 2015
approved