A131304 2*A089840 - A000012.

1, 3, 1, 5, 5, 1, 7, 3, 3, 1, 9, 13, 5, 3, 1, 11, 15, 7, 5, 3, 1, 13, 11, 11, 9, 5, 3, 1, 15, 7, 9, 7, 9, 5, 3, 1, 17, 9, 13, 11, 11, 11, 5, 3, 1, 19, 33, 15, 137, 9, 11, 5, 3, 1

Offset: 1

Author

Gary W. Adamson, Jun 27 2007

Keywords

• nonn
• tabl

Examples

			First few rows of the triangle:
   1;
   3,  1;
   5,  5,  1;
   7,  3,  3,  1;
   9, 13,  5,  3,  1;
  11, 15,  7,  5,  3,  1;
  13, 11, 11,  9,  5,  3,  1;
  ...
		

Crossrefs

Cf. A089840, A131302, A131303, A122203, A122204.

Formula

2*A089840(deleting the right border of zeros) - A000012.