126036076402
domain: N
Appears in sequences
- Companion Pell numbers: a(n) = 2*a(n-1) + a(n-2), a(0) = a(1) = 2.at n=29A002203
- Numerators of continued fraction convergents to sqrt(8).at n=28A041010
- Numbers k such that (k^2 + 4)/2 is a square.at n=14A077444
- Expansion of (1+x^2)/(1-2*x-x^2).at n=29A099425
- a(1) = 2, a(2) = 8; a(n) = 2 a(n - 1) + a(n - 2) - 4*(n mod 2).at n=28A162484