26789257

Appears in sequences

• Number of walks of length 2n+1 between two nodes at distance 3 in the cycle graph C_10.at n=12A095932
• a(n) = Sum_{k >= 0} binomial(n,5*k).at n=27A139398
• a(n) = Sum_{k>=0} binomial(n,5*k+2).at n=27A139714
• a(n) = Sum_{k=0..n} binomial(5*n+2,5*k).at n=5A345456
• a(n) = Sum_{k=0..n} binomial(3*n,5*k).at n=9A387847
• a(n) = Sum_{k=0..n} binomial(2*n+1,5*k).at n=13A387871
• a(n) = Sum_{k=0..n} binomial(4*n+3,5*k).at n=6A387906