119912domain: NAppears in sequencesMcKay-Thompson series of class 6c for Monster.at n=27A007262McKay-Thompson series of class 18c for Monster.at n=27A058538a(n) = 991*n^2 + 1.at n=11A237991a(0) = 1; a(n) = 8 * Sum_{k=1..n} binomial(n,k) * a(k-1).at n=5A345081a(n) = Sum_{k=0..n} |Stirling1(n+2*k,k)|.at n=3A392752