A131922 Triangle read by rows: 2*A002024 - A130296 as infinite lower triangular matrices.

1, 2, 3, 3, 5, 5, 4, 7, 7, 7, 5, 9, 9, 9, 9, 6, 11, 11, 11, 11, 11, 7, 13, 13, 13, 13, 13, 13, 8, 15, 15, 15, 15, 15, 15, 15, 9, 17, 17, 17, 17, 17, 17, 17, 17, 10, 19, 19, 19, 19, 19, 19, 19, 19, 19, 11, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 12, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23

Offset: 0

Author

Gary W. Adamson, Jul 29 2007

Keywords

• nonn
• tabl

Comments

Row sums = A001844: (1, 5, 13, 25, 41, 61, 85, ...).

Examples

			First few rows of the triangle:
  1;
  2, 3;
  3, 5, 5;
  4, 7, 7, 7;
  5, 9, 9, 9, 9;
  ...
		

Crossrefs

Cf. A001844, A002024, A130296.

Extensions

Edited and more terms from Georg Fischer, Jun 08 2023