44874

Appears in sequences

• Numbers k such that binomial(5k, k) + 1 is prime.at n=17A125243
• a(n) = n*(n-3)*(n^2-7*n+14)/8.at n=24A176145
• Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of these n*k points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of edges in the resulting planar graph.at n=39A367305