A130167 Another version of triangle in A127743.

1, 0, 1, 0, 1, 1, 0, 2, 2, 1, 0, 6, 5, 3, 1, 0, 22, 16, 9, 4, 1, 0, 92, 60, 31, 14, 5, 1, 0, 426, 252, 120, 52, 20, 6, 1, 0, 2146, 1160, 510, 209, 80, 27, 7, 1, 0, 11624, 5776, 2348, 904, 335, 116, 35, 8, 1, 0, 67146, 30832, 11610, 4184, 1481, 507, 161, 44, 9, 1

Offset: 0

Author

Philippe Deléham, Aug 03 2007

Keywords

• nonn
• tabl

Comments

Triangle T(n,k), 0 <= k <= n, read by rows given by [0,1,1,2,1,3,1,4,1,5,1,6,1,...] DELTA [1,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938.

Modulo 2, this sequence gives A106344. - Philippe Deléham, Dec 18 2008

A154380*A130595 as infinite lower triangular matrices. - Philippe Deléham, Jan 13 2009

Examples

			Triangle begins:
  1;
  0,  1;
  0,  1,  1;
  0,  2,  2,  1;
  0,  6,  5,  3,  1;
  0, 22, 16,  9,  4,  1;
  0, 92, 60, 31, 14,  5,  1; ...
		

Crossrefs

Cf. A074664.

Formula

Sum_{k=0..n} T(n,k) = A000110(n).