A000969 - cp's OEIS frontend

A000969 Expansion of g.f. (1 + x + 2x^2)/((1 - x)^2(1 - x^3)).

n	a(n)
0	1
1	3
2	7
3	12
4	18
5	26
6	35
7	45
8	57
9	70
10	84
11	100
12	117
13	135
14	155
15	176
16	198
17	222
18	247
19	273
20	301
21	330
22	360
23	392
24	425
25	459
26	495
27	532
28	570
29	610
30	651
31	693
32	737
33	782
34	828
35	876
36	925
37	975
38	1027
39	1080
40	1134
41	1190
42	1247
43	1305
44	1365
45	1426
46	1488
47	1552
48	1617
49	1683
50	1751
51	1820
52	1890

[1, 3, 7, 12, 18, 26, 35, 45, 57, 70, 84, 100, 117, 135, 155, 176, 198, 222, 247, 273, 301, 330, 360, 392, 425, 459, 495, 532, 570, 610, 651, 693, 737, 782, 828, 876, 925, 975, 1027, 1080, 1134, 1190, 1247, 1305, 1365, 1426, 1488, 1552, 1617, 1683, 1751, 1820, 1890]

cp's OEIS Frontend

A000969 Expansion of g.f. (1 + x + 2x^2)/((1 - x)^2(1 - x^3)).

Table of values

List of values

cp's OEIS Frontend

A000969 Expansion of g.f. (1 + x + 2*x^2)/((1 - x)^2*(1 - x^3)).

Table of values

List of values

A000969 Expansion of g.f. (1 + x + 2x^2)/((1 - x)^2(1 - x^3)).