A130271 Triangle read by rows: A051340^2.

1, 3, 4, 5, 5, 9, 7, 7, 7, 16, 9, 9, 9, 9, 25, 11, 11, 11, 11, 11, 36, 13, 13, 13, 13, 13, 13, 49, 15, 15, 15, 15, 15, 15, 15, 64

Offset: 1

Author

Gary W. Adamson, May 18 2007

Keywords

• nonn
• tabl

Comments

Row sums = A003215: (1, 7, 19, 37, 61, 91, 127, ...).

Examples

			First few rows of the triangle:
   1;
   3,  4;
   5,  5,  9;
   7,  7,  7, 16;
   9,  9,  9,  9, 25;
  11, 11, 11, 11, 11, 36;
  13, 13, 13, 13, 13, 13, 49;
  ...
		

Crossrefs

Cf. A051340, A003215.

Formula

The square of A051340 as an infinite lower triangular matrix.

Extensions

Edited by N. J. A. Sloane, Jan 05 2009