20312
domain: N
Appears in sequences
- Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 2,0,3,1.at n=4A037729
- Numbers n such that n and n+1 are differences between 2 positive cubes in at least one way.at n=19A038594
- Triangular array related to tennis ball problem, read by rows.at n=47A079521
- The successive approximations up to 7^n for 7-adic integer 3^(1/5).at n=6A309451
- The successive approximations up to 7^n for 7-adic integer 3^(1/5).at n=7A309451
- Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=3A317559
- Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=3A317561
- T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=24A317565
- Third Lie-Betti number of a path graph on n vertices.at n=46A361230