51882

Appears in sequences

• Number of n-step self-avoiding walks on hexagonal [ =triangular ] lattice.at n=7A001334
• a(n) = self-convolution of row n of array T given by A027052.at n=9A027072
• Integers n such that 6n, 36n, and 216n fall between pairs of twin primes, that is, 6n-1, 6n+1, 36n-1, 36n+1, 216n-1, and 216n+1 are prime.at n=19A192851
• a(n) = [x^n] 1/(1 + n*(1 - theta_2(sqrt(x))/(2*x^(1/8)))), where theta_2() is the Jacobi theta function.at n=6A301334