A134575 A051731 * A127733.

1, 1, 4, 1, 0, 9, 1, 4, 0, 16, 1, 0, 0, 0, 25, 1, 4, 9, 0, 0, 36, 1, 0, 0, 0, 0, 0, 49, 1, 4, 0, 16, 0, 0, 0, 64, 1, 0, 9, 0, 0, 0, 0, 0, 81, 1, 4, 0, 0, 25, 0, 0, 0, 0, 100

Offset: 1

Author

Gary W. Adamson, Nov 02 2007

Keywords

• nonn
• tabl

Comments

Row sums = A001157: (1, 5, 10, 21, 26, 25, 50, 50, ...).

Examples

			First few rows of the triangle:
  1;
  1,  4;
  1,  0,  9;
  1,  4,  0, 16;
  1,  0,  0,  0, 25;
  1,  4,  9,  0,  0, 36;
  1,  0,  0,  0,  0,  0, 49;
  ...
		

Crossrefs

Cf. A051731, A127733, A001157.

Formula

A051731 * A127733 as infinite lower triangular matrices.