A027100 Diagonal sum of left justified array T given by A027082.

1, 1, 2, 3, 3, 6, 8, 11, 17, 25, 34, 53, 76, 107, 163, 236, 335, 506, 734, 1050, 1575, 2290, 3291, 4915, 7156, 10321, 15362, 22392, 32381, 48075, 70135, 101633, 150591, 219843, 319101, 472067, 689535, 1002196, 1480703, 2163798, 3148403, 4646697, 6792904, 9892961, 14588004

Offset

0,3

Links

Table of n, a(n) for n=0..44.

Formula

a(n) = Sum_{k=0..n} A027052(n-k, k). - Sean A. Irvine, Oct 23 2019

Crossrefs

Sequence in context: A020878 A158278 A187505 * A346030 A261090 A183560

Adjacent sequences: A027097 A027098 A027099 * A027101 A027102 A027103

Keyword

nonn

Author

Clark Kimberling

Extensions

More terms from Sean A. Irvine, Oct 23 2019

Status

approved