28704375domain: NAppears in sequences"BIK" (reversible, indistinct, unlabeled) transform of 1,3,5,7...at n=16A032127Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*9^j.at n=32A038251Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*5^j.at n=31A038295