44065
domain: N
Appears in sequences
- Strong pseudoprimes to base 51.at n=24A020277
- Smallest d such that real quadratic field with discriminant d has class number n.at n=33A081364
- Diagonal in array of n-gonal numbers A081422.at n=34A081437
- Number of pairs with two different elements which can be obtained by selecting unique elements from two sets with n+1 and n^2 elements respectively and n common elements.at n=35A085490
- a(n) = 36*n^2 - n.at n=34A157286
- a(n) = 34*n^2 + 1.at n=36A158586
- a(n) = 1225*n^2 - 35.at n=5A158735
- Row 4 of table A162430.at n=32A162433
- Number of nX6 0..1 arrays avoiding 0 0 0 horizontally and 0 0 1 vertically.at n=2A207086
- T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 0 0 1 vertically.at n=30A207088
- Number of 3 X n 0..1 arrays avoiding 0 0 0 horizontally and 0 0 1 vertically.at n=5A207089
- Number of nX6 0..1 arrays avoiding 0 0 0 horizontally and 0 1 0 vertically.at n=2A207180
- T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 0 1 0 vertically.at n=30A207182
- E.g.f.: -log(1+x)*LambertW(-x).at n=7A277481