41026

Appears in sequences

• Numbers k such that binomial(4k, k) + 1 is prime.at n=32A125241
• Numbers k such that 8*10^k - 13 is prime.at n=23A287208
• The number of vertices on a concave circular triangle formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.at n=17A340686
• Irregular triangle read by rows: T(n,k) is number of sequences of length k over {0,1,...,n-1} containing no two consecutive blocks with the same average, n >= 1, 0 <= k <= A379914(n).at n=56A379998