210654

Appears in sequences

• McKay-Thompson series of class 9A for Monster.at n=14A007266
• McKay-Thompson series of class 9A for the Monster group with a(0) = 3.at n=14A045491
• Expansion of (eta(q^3)^2 / (eta(q) * eta(q^9)))^6 in powers of q.at n=14A131985
• a(n) = 729*n^2 - 27.at n=16A158655