101455
domain: N
Appears in sequences
- Positive numbers y such that y^2 is of the form x^2+(x+103)^2 with integer x.at n=13A157120
- Number of n-length words on {1,2,3} such that the maximal blocks (runs) of 1's have odd length, the maximal blocks of 2's have even length and the maximal blocks of 3's have odd length.at n=16A242510
- a(n) = Sum_{p <= n <= q < 2n, p,q prime} (p * q).at n=37A352777
- a(n) = Sum_{p <= n <= q < 2n, p,q prime} (p * q).at n=38A352777