1089411domain: NAppears in sequencesNumbers k such that googol - k is an upper twin prime.at n=23A133282Number of lower triangles of an n X n -6..6 array with all row and column sums zero.at n=4A195520Number of lower triangles of a 5 X 5 -n..n array with all row and column sums zero.at n=5A195523