A136536 Triangle read by rows: A001263 * A128064 * A000012 as infinite lower triangular matrices.

1, 2, 2, 5, 7, 3, 14, 19, 19, 4, 42, 51, 71, 41, 5, 132, 146, 216, 216, 76, 6, 429, 449, 617, 827, 547, 127, 7, 1430, 1457, 1793, 2675, 2675, 1205, 197, 8, 4862, 4897, 5497, 8017, 10369, 7429, 2389, 289, 9, 16796, 16840, 17830, 23770, 34858, 34858, 18226, 4366, 406, 10

Offset: 1

Author

Gary W. Adamson, Jan 04 2008

Keywords

• nonn
• tabl

Comments

Row sums = A001791: (1, 4, 15, 56, 210, 792, ...).

Left column = A000108 starting (1, 2, 5, 14, 42, 132, 429, ...).

Examples

			First few rows of the triangle:
    1;
    2,   2;
    5,   7,   3;
   14,  19,  19,   4;
   42,  51,  71,  41,   5;
  132, 146, 216, 216,  76,   6;
  429, 449, 617, 827, 547, 127,   7;
  ...
		

Crossrefs

Cf. A000108, A001263, A001791, A128064.

Extensions

a(46) = 16796 corrected and two more terms from Georg Fischer, May 31 2023