A007988 - cp's OEIS frontend

A007988 Expansion of (x^6-x^5-x^4+2x^2)/((1-x^3)(1-x^2)^2(1-x)).

n	a(n)
2	2
3	2
4	5
5	6
6	11
7	12
8	20
9	22
10	32
11	36
12	49
13	54
14	71
15	78
16	98
17	108
18	132
19	144
20	173
21	188
22	221
23	240
24	278
25	300
26	344
27	370
28	419
29	450
30	505
31	540
32	602
33	642
34	710
35	756
36	831
37	882
38	965
39	1022
40	1112
41	1176
42	1274
43	1344
44	1451
45	1528
46	1643
47	1728
48	1852
49	1944
50	2078
51	2178

[2, 2, 5, 6, 11, 12, 20, 22, 32, 36, 49, 54, 71, 78, 98, 108, 132, 144, 173, 188, 221, 240, 278, 300, 344, 370, 419, 450, 505, 540, 602, 642, 710, 756, 831, 882, 965, 1022, 1112, 1176, 1274, 1344, 1451, 1528, 1643, 1728, 1852, 1944, 2078, 2178]

cp's OEIS Frontend

A007988 Expansion of (x^6-x^5-x^4+2x^2)/((1-x^3)(1-x^2)^2(1-x)).

Table of values

List of values