219993856006
domain: N
Appears in sequences
- a(n) = Sum_{k=0..n} binomial(5*n,5*k).at n=8A070782
- Number of closed walks of length 2n at a vertex of the cyclic graph on 10 nodes C_10.at n=20A095929
- a(n) = Sum_{k=0..n} binomial(2*n,5*k).at n=20A387844
- a(n) = Sum_{k=0..n} binomial(4*n,5*k).at n=10A387848
- a(n) = Sum_{k=0..n} binomial(3*n+1,5*k).at n=13A387872