26807
domain: N
Appears in sequences
- Interprimes which are of the form s*prime, s=11.at n=11A075286
- Numbers k such that 6^k - 7 is prime.at n=29A217352
- Number of partitions of n such that if the length is k then k is not a part.at n=39A229816
- Number of modified skew Dyck paths such that the area between the x-axis and the path is n.at n=24A274376
- Number of compositions (ordered partitions) of n into octagonal numbers (A000567).at n=52A322800
- a(n) = Sum_{k=1..n} binomial(2*n, k) * A000005(k).at n=6A356372