54986385093
domain: N
Appears in sequences
- Number of walks of length 2n between two nodes at distance 2 in the cycle graph C_10.at n=18A095930
- a(n) = Sum_{k=0..n} binomial(5*n+3,5*k).at n=7A345457
- a(n) = Sum_{k=0..n} binomial(3*n+2,5*k).at n=12A387038
- a(n) = Sum_{k=0..n} binomial(2*n,5*k).at n=19A387844
- a(n) = Sum_{k=0..n} binomial(4*n+2,5*k).at n=9A387905