2413405

Appears in sequences

• Terms of A072390 (sums of two powers of 13) divided by 2.at n=21A073220
• A triangle of polynomial coefficients: q(x,n)=-((x - 1)^(2*n + 1)/x^n)*Sum[(2*k + 1)^n*Binomial[k, n]*x^k, {k, 0, Infinity}]; p(x,n)=q(x,n)+x^n*q(1/x,n).at n=21A155915
• A triangle of polynomial coefficients: q(x,n)=-((x - 1)^(2*n + 1)/x^n)*Sum[(2*k + 1)^n*Binomial[k, n]*x^k, {k, 0, Infinity}]; p(x,n)=q(x,n)+x^n*q(1/x,n).at n=27A155915
• a(n) = ((2*n + 1)^6 + 1)/2.at n=6A175113
• Number of compositions of even natural numbers into 6 parts <= n.at n=12A191489
• a(n) = (13^n + 1)/2.at n=6A193578
• a(n) is the smallest positive integer of length (distance from origin) n in the Cayley graph of the integers generated by all powers of 13.at n=36A297182