1296540domain: NAppears in sequencesTriangle of coefficients in expansion of (6+7x)^n.at n=25A013627Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*6^j.at n=23A038272Primal codes of canonical finite permutations on positive integers.at n=25A109299Number of right triangles on a centered hexagonal grid of size n.at n=16A241225