A093660 - OEIS

%I #3 Mar 30 2012 18:36:40

%S 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,

%T 16,65,65,326,2,5,5,16,5,16,16,65,5,16,16,65,16,65,65,326,5,16,16,65,

%U 16,65,65,326,16,65,65,326,65,326,326,1957

%N Row sums of lower triangular matrix A093658.

%C 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).

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

%Y Cf. A000522, A010842, A093658, A093661.

%K nonn

%O 1,2

%A _Paul D. Hanna_, Apr 08 2004