45537549123
domain: N
Appears in sequences
- a(n) = Lucas(4n+3) - 1, or Lucas(2n+1)*Lucas(2n+2).at n=12A081019
- a(n) = Lucas(3*n) - 1.at n=17A100233
- Continued fraction expansion for exp( Sum_{n>=1} 1/(n*A014448(n)) ), where A014448(n) = (2+sqrt(5))^n + (2-sqrt(5))^n.at n=25A174506
- a(n) = L(n)*L(n+1), where L = A000032 (Lucas numbers).at n=25A215602