A113141 Inverse of a Delannoy related triangle.

1, -3, 1, 2, -5, 1, -2, 10, -7, 1, 2, -14, 22, -9, 1, -2, 18, -46, 38, -11, 1, 2, -22, 78, -106, 58, -13, 1, -2, 26, -118, 230, -202, 82, -15, 1, 2, -30, 166, -426, 538, -342, 110, -17, 1, -2, 34, -222, 710, -1194, 1082, -534, 142, -19, 1, 2, -38, 286, -1098, 2330, -2814, 1958, -786, 178, -21, 1

Offset

0,2

Comments

First column is (-1)^n*A104435(n). Row sums are 1,-2,-2,2,2,-2,-2,... Second column is A113142. Inverse of A113139.

Links

Table of n, a(n) for n=0..65.

Example

Triangle begins
1;
-3, 1;
2, -5, 1;
-2, 10, -7, 1;
2, -14, 22, -9, 1;
-2, 18, -46, 38, -11, 1;

Crossrefs

Sequence in context: A125704 A357498 A131127 * A134225 A136081 A083106

Adjacent sequences: A113138 A113139 A113140 * A113142 A113143 A113144

Keyword

sign,tabl

Author

Paul Barry, Oct 15 2005

Status

approved