A111641 - cp's OEIS frontend

A111641 Expansion of -(1+x+3x^2+x^3)/((x^2+4x+1)(x^2-2x-1)).

n	a(n)
0	1
1	-5
2	25
3	-107
4	433
5	-1697
6	6529
7	-24839
8	93841
9	-352973
10	1323961
11	-4957139
12	18539041
13	-69282185
14	258790465
15	-966364367
16	3607837153
17	-13467809237
18	50270219929
19	-187629535739
20	700287673681
21	-2613617125553
22	9754412512321
23	-36404592257879
24	135865306871281

[1, -5, 25, -107, 433, -1697, 6529, -24839, 93841, -352973, 1323961, -4957139, 18539041, -69282185, 258790465, -966364367, 3607837153, -13467809237, 50270219929, -187629535739, 700287673681, -2613617125553, 9754412512321, -36404592257879, 135865306871281]

cp's OEIS Frontend

A111641 Expansion of -(1+x+3x^2+x^3)/((x^2+4x+1)(x^2-2x-1)).

Table of values

List of values

cp's OEIS Frontend

A111641 Expansion of -(1+x+3*x^2+x^3)/((x^2+4*x+1)*(x^2-2*x-1)).

Table of values

List of values

A111641 Expansion of -(1+x+3x^2+x^3)/((x^2+4x+1)(x^2-2x-1)).