A131828 Square of lower triangular matrix in A131821, read by rows.

1, 6, 4, 14, 5, 9, 25, 7, 7, 16, 39, 9, 9, 9, 25, 56, 11, 11, 11, 11, 36, 76, 13, 13, 13, 13, 13, 49, 99, 15, 15, 15, 15, 15, 15, 64, 125, 17, 17, 17, 17, 17, 17, 17, 81, 154, 19, 19, 19, 19, 19, 19, 19, 19, 100

Offset: 1

Author

Gary W. Adamson, Jul 20 2007

Keywords

• nonn
• tabl

Comments

Left column = A095794: (1, 6, 14, 25, 39, 56, ...).

Row sums = A060544: (1, 10, 28, 55, 91, 190, ...).

Examples

			First few rows of the triangle:
   1;
   6,  4;
  14,  5,  9;
  25,  7,  7, 16;
  39,  9,  9,  9, 25;
  56, 11, 11, 11, 11, 36;
  76, 13, 13, 13, 13, 13, 49;
  ...
		

Crossrefs

Cf. A131821, A095794, A060544.

Formula

A131821^2.