97712domain: NAppears in sequencesLarger of bi-unitary amicable pair.at n=19A292981a(n) is the number of squares of side length greater than 1 having vertices at the points of an n X n grid of dots.at n=32A328152Expansion of e.g.f. (1 + x)^(2/(1 - 2 * log(1+x))).at n=6A354288