215492564
domain: N
Appears in sequences
- Closed walks of length n along the edges of a pentagon based at a vertex.at n=30A054877
- a(n) = Sum_{k=0..n} binomial(5*n,5*k).at n=6A070782
- Number of closed walks of length 2n at a vertex of the cyclic graph on 10 nodes C_10.at n=15A095929
- a(n) = Sum_{k >= 0} binomial(n,5*k).at n=30A139398
- a(n) = Sum_{k == floor(n/2) (mod 5)} C(n,k).at n=30A173125
- a(n) = Sum_{k=0..n} binomial(2*n,5*k).at n=15A387844
- a(n) = Sum_{k=0..n} binomial(3*n,5*k).at n=10A387847
- a(n) = Sum_{k=0..n} binomial(4*n+2,5*k).at n=7A387905