-2494domain: ZAppears in sequencesPartition function coefficients for square lattice spin 2 Ising model.at n=44A010108Expansion of 1 / (1 + Sum_{k>=1} mu(k)^2 * x^k).at n=41A329099The bottom entry in the forward difference table of the Euler totient function phi for 1..n.at n=11A331573