313506783024
domain: N
Appears in sequences
- a(n)^2 is a triangular number: a(n) = 6*a(n-1) - a(n-2) with a(0)=0, a(1)=1.at n=16A001109
- a(n) = 34*a(n-1) - a(n-2); a(0)=0, a(1)=6.at n=8A082405
- a(n) = (2*Pell(n+1) - (1+(-1)^n))/4.at n=31A105635
- G.f.: Sum_{n>=1} moebius(n)*x^n/(1 - A002203(n)*x^n + (-1)^n*x^(2*n)), where A002203 is the companion Pell numbers.at n=31A204385