A134148 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A134148

Alternating row sums of triangle A134146.

4

1, 2, 13, 83, 817, 9065, 121795, 1850384, 31964686, 612859952, 12980965588, 300358150373, 7548024748057, 204624140789585, 5954693801179750, 185127523366125449, 6124428454164394921, 214815152433502078607

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..18.

FORMULA

a(n) = Sum_{m=1..n} A134146(n,m)*(-1)^(m-1), n>=1.

CROSSREFS

Cf. A134147 (row sums of A134146).

Sequence in context: A079752 A156018 A285795 * A164035 A074619 A162275

Adjacent sequences: A134145 A134146 A134147 * A134149 A134150 A134151

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang, Nov 13 2007

STATUS

approved