A136534 A001263 * A128064 (unsigned).

1, 2, 2, 4, 8, 3, 7, 24, 21, 4, 11, 60, 90, 44, 5, 16, 130, 300, 260, 80, 6, 22, 2252, 840, 1120, 630, 132, 7, 29, 448, 2058, 3920, 3430, 1344, 203, 8, 37, 744, 4536, 11760, 14700, 9072, 2604, 296, 9, 46, 1170, 9180, 31248, 52920, 46872, 21420, 4680, 414, 10

Offset: 1

Author

Gary W. Adamson, Jan 04 2008

Keywords

• nonn
• tabl

Comments

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

Left column = A000124: (1, 2, 4, 7, 11, 16, 22, ...).

Examples

			First few rows of the triangle:
   1;
   2,   2;
   4,   8,   3;
   7,  24,  21,    4;
  11,  60,  90,   44,   5;
  16, 130, 300,  260,  80,   6;
  22, 252, 840, 1120, 630, 132, 7;
  ...
		

Crossrefs

Cf. A001263, A128064, A001791, A000124.

Formula

A001263 * A128064 (unsigned), A001263 = the Narayana triangle, A128064 = an infinite lower triangular matrix with (1, 2, 3, ...) in the main and subdiagonals.