27532domain: NAppears in sequencesNumber of permutations that avoid the generalized pattern 123-4.at n=8A071076a(n) = 49n^2 - 28n - 20.at n=23A118058Numbers k such that the coefficient of x^k in the expansion of Product_{j>=1} (1 - x^j)^5 is zero.at n=32A302057