320082

Appears in sequences

• McKay-Thompson series of class 13A for the Monster group with a(0) = -2.at n=22A034318
• McKay-Thompson series of class 13A for the Monster group with a(0) = 0.at n=22A034319
• Numbers n such that n-19, n-1, n+1 and n+19 are consecutive primes.at n=18A262668
• a(n) = Sum_{k=0..n} 3^k * binomial(n+1,k+1) * binomial(2*k+2,k+2).at n=5A387309