A301703 - cp's OEIS frontend

A301703 a(n) is the number of positive coefficients of the polynomial (x-1)(x^2-1)...*(x^n-1).

n	a(n)
1	1
2	2
3	3
4	3
5	6
6	6
7	9
8	13
9	16
10	18
11	21
12	27
13	34
14	32
15	42
16	47
17	54
18	62
19	73
20	79
21	85
22	96
23	104
24	113
25	123
26	140
27	150
28	171
29	174
30	190
31	200
32	211
33	234
34	240
35	263
36	275
37	301
38	304
39	322
40	351
41	368
42	396
43	413
44	455
45	451
46	470
47	487
48	499
49	531
50	540
51	592
52	585
53	631
54	630
55	687
56	691
57	734
58	774
59	793
60	863

[1, 2, 3, 3, 6, 6, 9, 13, 16, 18, 21, 27, 34, 32, 42, 47, 54, 62, 73, 79, 85, 96, 104, 113, 123, 140, 150, 171, 174, 190, 200, 211, 234, 240, 263, 275, 301, 304, 322, 351, 368, 396, 413, 455, 451, 470, 487, 499, 531, 540, 592, 585, 631, 630, 687, 691, 734, 774, 793, 863]

cp's OEIS Frontend

A301703 a(n) is the number of positive coefficients of the polynomial (x-1)(x^2-1)...*(x^n-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	3
5	6
6	6
7	9
8	13
9	16
10	18
11	21
12	27
13	34
14	32
15	42
16	47
17	54
18	62
19	73
20	79
21	85
22	96
23	104
24	113
25	123
26	140
27	150
28	171
29	174
30	190
31	200
32	211
33	234
34	240
35	263
36	275
37	301
38	304
39	322
40	351
41	368
42	396
43	413
44	455
45	451
46	470
47	487
48	499
49	531
50	540
51	592
52	585
53	631
54	630
55	687
56	691
57	734
58	774
59	793
60	863

n	a(n)
1	1
2	2
3	3
4	3
5	6
6	6
7	9
8	13
9	16
10	18
11	21
12	27
13	34
14	32
15	42
16	47
17	54
18	62
19	73
20	79
21	85
22	96
23	104
24	113
25	123
26	140
27	150
28	171
29	174
30	190
31	200
32	211
33	234
34	240
35	263
36	275
37	301
38	304
39	322
40	351
41	368
42	396
43	413
44	455
45	451
46	470
47	487
48	499
49	531
50	540
51	592
52	585
53	631
54	630
55	687
56	691
57	734
58	774
59	793
60	863

cp's OEIS Frontend

A301703 a(n) is the number of positive coefficients of the polynomial (x-1)*(x^2-1)*...*(x^n-1).

Table of values

List of values

A301703 a(n) is the number of positive coefficients of the polynomial (x-1)(x^2-1)...*(x^n-1).

n	a(n)
1	1
2	2
3	3
4	3
5	6
6	6
7	9
8	13
9	16
10	18
11	21
12	27
13	34
14	32
15	42
16	47
17	54
18	62
19	73
20	79
21	85
22	96
23	104
24	113
25	123
26	140
27	150
28	171
29	174
30	190
31	200
32	211
33	234
34	240
35	263
36	275
37	301
38	304
39	322
40	351
41	368
42	396
43	413
44	455
45	451
46	470
47	487
48	499
49	531
50	540
51	592
52	585
53	631
54	630
55	687
56	691
57	734
58	774
59	793
60	863