A121449 - cp's OEIS frontend

A121449 Expansion of (1 - 3x + 2x^2)/(1 - 4x + 3x^2 + x^3).

n	a(n)
0	1
1	1
2	3
3	8
4	22
5	61
6	170
7	475
8	1329
9	3721
10	10422
11	29196
12	81797
13	229178
14	642125
15	1799169
16	5041123
17	14124860
18	39576902
19	110891905
20	310712054
21	870595599
22	2439354329
23	6834918465
24	19151015274
25	53659951372
26	150351841201
27	421276495414
28	1180390506681
29	3307380699281

[1, 1, 3, 8, 22, 61, 170, 475, 1329, 3721, 10422, 29196, 81797, 229178, 642125, 1799169, 5041123, 14124860, 39576902, 110891905, 310712054, 870595599, 2439354329, 6834918465, 19151015274, 53659951372, 150351841201, 421276495414, 1180390506681, 3307380699281]

cp's OEIS Frontend

A121449 Expansion of (1 - 3x + 2x^2)/(1 - 4x + 3x^2 + x^3).

Table of values

List of values

cp's OEIS Frontend

A121449 Expansion of (1 - 3*x + 2*x^2)/(1 - 4*x + 3*x^2 + x^3).

Table of values

List of values

A121449 Expansion of (1 - 3x + 2x^2)/(1 - 4x + 3x^2 + x^3).