70713

Appears in sequences

• a(n) = 97*n^2.at n=27A174338
• Number of compositions of n into parts with distinct multiplicities and with exactly nine parts.at n=34A321779
• Triangle read by rows: T(n,k) is the number of n+2-sided polygons whose points lie on a circle and with the property that one makes k turns on itself, always in the same direction (right or left) while following its edges, 1 <= k <= ceiling(n/2).at n=27A343257
• a(n) = Sum_{k=0..floor(n/3)} 2^k * 3^(n-2*k) * binomial(n-2*k,k)^2.at n=8A387512