A105539 - OEIS

%I #3 Mar 30 2012 18:36:45

%S 1,3,1,9,6,1,17,15,3,1,61,92,23,28,8,138,240,62,91,28,1,238,440,115,

%T 187,58,3,1,634,1554,404,1256,416,43,78,27,1421,3915,1009,3784,1266,

%U 142,291,104,1,2707,7933,2023,8486,2848,332,756,275,6,1,4487,13542,3436,15126

%N Matrix cube of triangle A105535 and, in this flattened form as read by rows, also equals diagonal 2 of A105535.

%C Diagonal n of triangular matrix A105535 equals A105535^(n+1) when flattened as read by rows.

%e Triangle begins:

%e 1;

%e 3,1;

%e 9,6,1;

%e 17,15,3,1;

%e 61,92,23,28,8;

%e 138,240,62,91,28,1;

%e 238,440,115,187,58,3,1;

%e 634,1554,404,1256,416,43,78,27;

%e 1421,3915,1009,3784,1266,142,291,104,1; ...

%o (PARI)

%Y Cf. A105535, A105538 (column 0).

%K nonn,tabl

%O 0,2

%A _Paul D. Hanna_, Apr 12 2005