43490

Appears in sequences

• Coefficient of x^2 in polynomial whose zeros are 5 consecutive primes starting with the n-th prime.at n=4A125270
• Numbers n such that n^9+9 and n^9-9 are prime.at n=33A239505
• Expansion of Product_{k>=1} (1+x^k)^(k*(k+1)).at n=11A258341
• The number of edges inside a pentagon formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.at n=5A329710
• Numbers that are the sum of five fourth powers in four or more ways.at n=7A344354
• Numbers that are the sum of five fourth powers in exactly four ways.at n=7A344355
• Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of the n*(k+1) boundary points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of edges in the resulting planar graph.at n=30A367324