A093655 First column of lower triangular matrix A093654.

1, 1, 1, 2, 1, 2, 2, 7, 1, 2, 2, 7, 2, 7, 7, 41, 1, 2, 2, 7, 2, 7, 7, 41, 2, 7, 7, 41, 7, 41, 41, 397, 1, 2, 2, 7, 2, 7, 7, 41, 2, 7, 7, 41, 7, 41, 41, 397, 2, 7, 7, 41, 7, 41, 41, 397, 7, 41, 41, 397, 41, 397, 397, 6377

Offset: 1

Author

Paul D. Hanna, Apr 08 2004

Keywords

• nonn

Comments

Related to the number of tournament sequences (A008934).

a(n) equals the number of tournament sequences (A008934) of length A000120(n-1), which is the number of 1's in the binary expansion of n-1.

Crossrefs

Cf. A008934, A093655.

Cf. A000120.

Formula

a(2^n) = A008934(n) for n>=0.

a(n) = A008934(A000120(n-1)) for n>=1.