26102926096
domain: N
Appears in sequences
- Numbers k such that 2*k*(k+2) is a square.at n=14A082639
- a(2n) = A002315(n), a(2n+1) = A082639(n+1).at n=27A113224
- Number of dominating subsets with k vertices in all the graphs G(n) (n>=1) obtained by taking n copies of the path P_3 and identifying one of their endpoints (a star with n branches of length 2).at n=26A213667
- Number of 2 X n binary arrays with top left element equal to 1 and no two ones adjacent horizontally or nw-se.at n=27A228797
- Expansion of (x^4+x^3-x^2+x)/(x^3+x^2-3*x+1).at n=28A265278
- Expansion of 2*x^2 / (x^3 + x^2 - 3x + 1).at n=28A293004