58952domain: NAppears in sequencesMcKay-Thompson series of class 18b for the Monster group.at n=24A058537Sums of groups in A075639.at n=25A075640a(n) = a(n-2) + 4*a(n-4) - 2*a(n-8) - a(n-10), with a[0..9] = [1, 1, 1, 2, 3, 5, 7, 13, 18, 31].at n=26A365274Expansion of (1+3*x+2*x^2) / (1-6*x^2-4*x^3+2*x^4).at n=11A384635