A371301 Expansion of (x^2 + x - 1)/((1 - x)*(2*x^2 + 3*x - 1)). Row sums of A371300.

1, 3, 10, 35, 124, 441, 1570, 5591, 19912, 70917, 252574, 899555, 3203812, 11410545, 40639258, 144738863, 515495104, 1835963037, 6538879318, 23288564027, 82943450716, 295407480201, 1052109342034, 3747142986503, 13345647643576, 47531228903733, 169284981998350

Offset: 0

Author

Peter Luschny, Mar 18 2024

Keywords

• nonn
• easy

Links

• Index entries for linear recurrences with constant coefficients, signature (4,-1,-2).

Crossrefs

Cf. A371300.

Programs

Maple

gf := (x^2 + x - 1)/((1 - x)*(2*x^2 + 3*x - 1)):
ser := series(gf, x, 32): seq(coeff(ser, x, n), n = 0..26);