A039830 - cp's OEIS frontend

A039830 Number of different coefficient values in expansion of Product_{i=1..n} (1-q^1+q^2-...+(-q)^i).

n	a(n)
0	1
1	2
2	4
3	4
4	6
5	16
6	22
7	15
8	19
9	46
10	56
11	34
12	40
13	92
14	106
15	61
16	69
17	154
18	172
19	96
20	106
21	232
22	254
23	139
24	151
25	326
26	352
27	190
28	204
29	436
30	466
31	249
32	265
33	562
34	596
35	316
36	334
37	704
38	742
39	391
40	411
41	862
42	904
43	474
44	496
45	1036
46	1082
47	565
48	589
49	1226
50	1276
51	664
52	690
53	1432
54	1486
55	771

[1, 2, 4, 4, 6, 16, 22, 15, 19, 46, 56, 34, 40, 92, 106, 61, 69, 154, 172, 96, 106, 232, 254, 139, 151, 326, 352, 190, 204, 436, 466, 249, 265, 562, 596, 316, 334, 704, 742, 391, 411, 862, 904, 474, 496, 1036, 1082, 565, 589, 1226, 1276, 664, 690, 1432, 1486, 771]

cp's OEIS Frontend

A039830 Number of different coefficient values in expansion of Product_{i=1..n} (1-q^1+q^2-...+(-q)^i).

Table of values

List of values