A136792 Row sums of triangle A136791.

1, 4, 17, 70, 297, 1342, 6519, 34006, 189647, 1125180, 7070043, 46861668, 326509757, 2384118432, 18194367189, 144769455298, 1198423872693, 10301330797778, 91782832060611, 846291315842738, 8063691844581123, 79290580233274024, 803613726879441863, 8385262925870388104

Offset

0,2

Links

Table of n, a(n) for n=0..23.

Formula

a(n) = 2*A005493(n) - (n+1).

Example

a(2) = 17 = sum of row 2 terms of triangle A136791: (3 + 5 + 9).
a(2) = 17 = 2* A005493 - 3 = 2*10 - 3.

Crossrefs

Cf. A136791, A005493.

Sequence in context: A291009 A017955 A017956 * A188482 A364705 A179606

Adjacent sequences: A136789 A136790 A136791 * A136793 A136794 A136795

Keyword

nonn

Author

Gary W. Adamson, Jan 21 2008

Extensions

a(9) corrected by Georg Fischer, Jul 27 2024

More terms from Peter Luschny, Jul 27 2024

Status

approved