A114647 - cp's OEIS frontend

A114647 Expansion of (3 -4x -3x^2)/((1-x^2)(1-2x-x^2)); a Pellian-related sequence.

n	a(n)
0	3
1	2
2	7
3	12
4	31
5	70
6	171
7	408
8	987
9	2378
10	5743
11	13860
12	33463
13	80782
14	195027
15	470832
16	1136691
17	2744210
18	6625111
19	15994428
20	38613967
21	93222358
22	225058683
23	543339720
24	1311738123
25	3166815962
26	7645370047
27	18457556052
28	44560482151
29	107578520350
30	259717522851

[3, 2, 7, 12, 31, 70, 171, 408, 987, 2378, 5743, 13860, 33463, 80782, 195027, 470832, 1136691, 2744210, 6625111, 15994428, 38613967, 93222358, 225058683, 543339720, 1311738123, 3166815962, 7645370047, 18457556052, 44560482151, 107578520350, 259717522851]

cp's OEIS Frontend

A114647 Expansion of (3 -4x -3x^2)/((1-x^2)(1-2x-x^2)); a Pellian-related sequence.

Table of values

List of values

cp's OEIS Frontend

A114647 Expansion of (3 -4*x -3*x^2)/((1-x^2)*(1-2*x-x^2)); a Pellian-related sequence.

Table of values

List of values

A114647 Expansion of (3 -4x -3x^2)/((1-x^2)(1-2x-x^2)); a Pellian-related sequence.