92504

Appears in sequences

• Alkane (or paraffin) numbers l(13,n).at n=10A018214
• Number of 2n-bead black-white reversible strings with n black beads.at n=10A032123
• Central column of Losanitsch's triangle A034851.at n=20A034872
• a(n) = (1/2)*(binomial(4*n, 2*n) - (-1)^n*binomial(2*n,n)).at n=5A037964
• Numbers n such that n divides Sum_{m=1..n} (m+1)!.at n=15A100083
• a(n) = Sum_{k=0..n} C(n,k)^2*mod(k,2).at n=10A110145