393984domain: NAppears in sequences"BIK" (reversible, indistinct, unlabeled) transform of 3,3,3,3...at n=9A032125Relates row sums of Pascal's triangle to expansion of cos(x)/exp(x).at n=18A100216Number of integers k^6 that divide 1!*2!*3!*...*n!.at n=22A248824