125588domain: NAppears in sequencesMcKay-Thompson series of class 14C for Monster.at n=21A058504McKay-Thompson series of class 14C for the Monster group with a(0) = 4.at n=21A128516a(n) is the number of binary strings of length n such that there exist 3 or more ones in a subsequence of length 5 or less.at n=16A131283