A058400 Triangle of partial row sums of partition triangle A058398.

1, 2, 1, 3, 2, 1, 5, 4, 3, 1, 7, 6, 5, 3, 1, 11, 10, 9, 7, 4, 1, 15, 14, 13, 11, 8, 4, 1, 22, 21, 20, 18, 15, 10, 5, 1, 30, 29, 28, 26, 23, 18, 12, 5, 1, 42, 41, 40, 38, 35, 30, 23, 14, 6, 1, 56, 55, 54, 52, 49, 44, 37, 27, 16, 6, 1, 77, 76, 75, 73, 70, 65, 58, 47, 34, 19, 7, 1, 101

Offset: 1

Author

Wolfdieter Lang, Dec 11 2000

Keywords

• nonn
• tabl

Comments

Mirror of A026820. - Omar E. Pol, Apr 21 2012

Examples

			Triangle begins:
1;
2,   1;
3,   2,  1;
5,   4,  3,  1;
7,   6,  5,  3, 1;
11, 10,  9,  7, 4, 1;
15, 14, 13, 11, 8, 4, 1;
		

Crossrefs

Columns 1-3: A000041(n), A000065(n), A007042(n+1).

Cf. A008284.

Formula

a(n, m) = sum(A058398(n, k), k=m..n).