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

0,2

Links

Table of n, a(n) for n=0..26.

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

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);

Crossrefs

Cf. A371300.

Sequence in context: A187925 A372852 A094855 * A243871 A081567 A224509

Adjacent sequences: A371298 A371299 A371300 * A371302 A371303 A371304

Keyword

nonn,easy

Author

Peter Luschny, Mar 18 2024

Status

approved