A111640 - cp's OEIS frontend

A111640 Expansion of (-1+3x+x^2-x^3)/((x^2+4x+1)(x^2-2x-1)).

n	a(n)
0	1
1	-9
2	45
3	-195
4	793
5	-3117
6	12013
7	-45751
8	172961
9	-650849
10	2441917
11	-9144539
12	34203161
13	-127829669
14	477505565
15	-1783134255
16	6657304833
17	-24851573497
18	92762239373
19	-346229372851
20	1292232479961
21	-4822886991709
22	17999765604237
23	-67177262104679
24	250711906290721

[1, -9, 45, -195, 793, -3117, 12013, -45751, 172961, -650849, 2441917, -9144539, 34203161, -127829669, 477505565, -1783134255, 6657304833, -24851573497, 92762239373, -346229372851, 1292232479961, -4822886991709, 17999765604237, -67177262104679, 250711906290721]

cp's OEIS Frontend

A111640 Expansion of (-1+3x+x^2-x^3)/((x^2+4x+1)(x^2-2x-1)).

Table of values

List of values

cp's OEIS Frontend

A111640 Expansion of (-1+3*x+x^2-x^3)/((x^2+4*x+1)*(x^2-2*x-1)).

Table of values

List of values

A111640 Expansion of (-1+3x+x^2-x^3)/((x^2+4x+1)(x^2-2x-1)).