70711162
domain: N
Appears in sequences
- Numerators of continued fraction convergents to sqrt(5).at n=13A001077
- Expansion of x*(1 + x - 2*x^2) / ( 1 - 4*x^2 - x^4).at n=27A059973
- Numbers k such that 5*k^2 + 5 is a square.at n=6A075796
- a(n) = Lucas(n) - floor(Lucas(n)/2).at n=39A173495
- a(n) = floor(Lucas(n+1)/2), Lucas(n) = A000032(n).at n=38A173714
- a(0)=a(1)=1, a(n+2) = a(n+1) + a(n) - A128834(n).at n=39A226956