137295
domain: N
Appears in sequences
- a(n) is the number of pairs (x,y) where x is plane partition of n+1 and y is a plane partition of n and x covers y.at n=17A090984
- Odd numbers divisible by 3 which are neither of the form p + 3^m + 1 nor of the form p + 3^m - 1 with p prime.at n=28A282191
- a(n) = Sum_{i=1..n-1}(i^(n-2)) mod n^4.at n=26A284760