A110114 - OEIS

A110114

Numerators in expansion of (1 - 2*x - 3*x^2)^(-1/4).

1, 1, 11, 45, 915, 4623, 48831, 261573, 11394435, 62705435, 696466693, 3895633963, 87686110551, 495923797275, 5633839691175, 32120544847605, 2939641341968355, 16862789923200915, 193953498934510825, 1117946167892824975

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

OFFSET

0,3

LINKS

Table of n, a(n) for n=0..19.

MATHEMATICA

Numerator[CoefficientList[Series[(1-2*x-3*x^2)^(-1/4), {x, 0, 20}], x]] (* Georg Fischer, Jun 11 2025 *)

CROSSREFS

Denominators are A046161.

Sequence in context: A231224 A231438 A322560 * A116193 A282095 A063158

Adjacent sequences: A110111 A110112 A110113 * A110115 A110116 A110117

KEYWORD

easy,nonn,frac

AUTHOR

Paul Barry, Jul 12 2005

EXTENSIONS

Definition corrected by Georg Fischer, Jun 11 2025

STATUS

approved