A110307 - cp's OEIS frontend

A110307 Expansion of (1+2x)/((1+x+x^2)(1+5*x+x^2)).

n	a(n)
0	1
1	-4
2	17
3	-80
4	384
5	-1842
6	8827
7	-42292
8	202631
9	-970862
10	4651680
11	-22287540
12	106786021
13	-511642564
14	2451426797
15	-11745491420
16	56276030304
17	-269634660102
18	1291897270207
19	-6189851690932
20	29657361184451
21	-142096954231322
22	680827409972160
23	-3262040095629480

[1, -4, 17, -80, 384, -1842, 8827, -42292, 202631, -970862, 4651680, -22287540, 106786021, -511642564, 2451426797, -11745491420, 56276030304, -269634660102, 1291897270207, -6189851690932, 29657361184451, -142096954231322, 680827409972160, -3262040095629480]

cp's OEIS Frontend

A110307 Expansion of (1+2x)/((1+x+x^2)(1+5*x+x^2)).

Table of values

List of values

cp's OEIS Frontend

A110307 Expansion of (1+2*x)/((1+x+x^2)*(1+5*x+x^2)).

Table of values

List of values

A110307 Expansion of (1+2x)/((1+x+x^2)(1+5*x+x^2)).