A159971 Riordan array (2c(-x)-1, xc(-x)^3), c(x) the g.f. of A000108.

1, -2, 1, 4, -5, 1, -10, 19, -8, 1, 28, -68, 43, -11, 1, -84, 240, -198, 76, -14, 1, 264, -847, 845, -427, 118, -17, 1, -858, 3003, -3458, 2140, -782, 169, -20, 1, 2860, -10712, 13804, -9996, 4503, -1290, 229, -23, 1, -9724, 38454, -54264, 44574

Offset: 0

Author

Paul Barry, Apr 28 2009

Keywords

• easy
• sign
• tabl

Comments

Inverse of A159965. Row sums are A159972.

Examples

			Triangle begins
1,
-2, 1,
4, -5, 1,
-10, 19, -8, 1,
28, -68, 43, -11, 1,
-84, 240, -198, 76, -14, 1,
264, -847, 845, -427, 118, -17, 1,
-858, 3003, -3458, 2140, -782, 169, -20, 1