A169826 Row sums of triangle A178568.

1, 2, 5, 8, 16, 27, 45, 69, 109, 171, 268, 404, 597, 860, 1215, 1684, 2310, 3159, 4335, 5959, 8195, 11225, 15268, 20562, 27397, 36112, 47111, 60844, 77836, 98687, 124093, 154857, 191939, 236553, 290324, 355406, 434637, 531646, 650997, 798288, 980312, 1205185, 1482491, 1823369

Offset

1,2

Links

Andrew Howroyd, Table of n, a(n) for n = 1..1000

Example

a(6) = 27 = (1 + 5 + 5 + 9 + 5 + 2).

Crossrefs

Cf. A178568.

Sequence in context: A226015 A328547 A137685 * A093065 A301596 A026007

Adjacent sequences: A169823 A169824 A169825 * A169827 A169828 A169829

Keyword

nonn

Author

Gary W. Adamson, May 29 2010

Extensions

a(16) onwards from Andrew Howroyd, Sep 21 2025

Status

approved