46698domain: NAppears in sequencesSums of 3 distinct powers of 6.at n=22A038479Number of permutations of length n which avoid the patterns 1243, 4132, 4321.at n=12A116771a(n) = n^n + n*n + n.at n=6A302989G.f.: Sum_{n>=0} (n+1)*(n+2)/2 * (x + x^n)^n.at n=56A325998Numbers of uniquely embeddable trees on n vertices.at n=25A378672