A143308 Triangle read by rows, A127446 * A000012, 1<=k<=n.

1, 4, 2, 6, 3, 3, 12, 8, 4, 4, 10, 5, 5, 5, 5, 24, 18, 12, 6, 6, 6, 14, 7, 7, 7, 7, 7, 7, 32, 24, 16, 16, 8, 8, 8, 8, 27, 18, 18, 9, 9, 9, 9, 9, 9, 40, 30, 20, 20, 20, 10, 10, 10, 10, 10, 22, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 72, 60, 48, 36, 24, 24, 12, 12, 12, 12, 12, 12

Offset: 1

Author

Gary W. Adamson, Aug 06 2008

Keywords

• nonn
• tabl
• less

Comments

Given triangle A127446, partial sums of terms starting from the right.

Row sums give A064987.

Left column is A038040.

Examples

			First few rows of the triangle =
   1;
   4,  2;
   6,  3,  3;
  12,  8,  4,  4;
  10,  5,  5,  5,  5;
  24, 18, 12,  6,  6,  6;
  14,  7,  7,  7,  7,  7,  7;
Row 4 = (12, 8, 4, 4) since row 4 of triangle A127446 = (4, 4, 0, 4).
		

Crossrefs

Cf. A038040, A064987, A127446.

Extensions

a(56) corrected by Georg Fischer, Jul 04 2023