A093660 Row sums of lower triangular matrix A093658.

1, 2, 2, 5, 2, 5, 5, 16, 2, 5, 5, 16, 5, 16, 16, 65, 2, 5, 5, 16, 5, 16, 16, 65, 5, 16, 16, 65, 16, 65, 65, 326, 2, 5, 5, 16, 5, 16, 16, 65, 5, 16, 16, 65, 16, 65, 65, 326, 5, 16, 16, 65, 16, 65, 65, 326, 16, 65, 65, 326, 65, 326, 326, 1957

Offset: 1

Author

Paul D. Hanna, Apr 08 2004

Keywords

• nonn

Comments

Records form A000522 (total number of arrangements of set of n elements). Partial sums form A093661, where A093661(2^n) = A010842(n) (incomplete Gamma Function at 2).

Crossrefs

Cf. A000522, A010842, A093658, A093661.

Formula

a(2^n) = A000522(n) for n>=0. a(2^n+2^m) = a(2^(m+1)) for n>m>=0.