122815domain: NAppears in sequencesLog of e.g.f. for trees A000055(n-1).at n=12A006802a(n) = n^3 + (n+1)^3 + (n+2)^3 + (n+3)^3 + (n+4)^3.at n=27A027604Numbers k such that [prime(k), prime(k+1), prime(k+2), prime(k+3)] == [1, 2, 3, 4] (mod 11).at n=11A302772