A278949 - cp's OEIS frontend

A278949 Expansion of Product_{k>=1} 1/(1 - x^(k(2k-1))).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	2
8	2
9	2
10	2
11	2
12	3
13	3
14	3
15	4
16	4
17	4
18	5
19	5
20	5
21	6
22	6
23	6
24	7
25	7
26	7
27	8
28	9
29	9
30	11
31	11
32	11
33	12
34	13
35	13
36	15
37	15
38	15
39	16
40	17
41	17
42	19
43	20
44	20
45	23
46	24
47	24
48	26
49	27
50	27
51	30
52	31
53	31
54	33
55	34
56	35
57	38
58	40
59	40
60	44
61	45
62	46
63	49
64	51
65	51
66	56
67	57
68	58
69	61
70	63
71	64
72	69
73	72
74	73
75	78
76	80
77	81
78	86
79	89
80	90
81	96
82	98
83	99
84	105
85	108
86	110
87	116
88	120
89	121
90	130

[1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 9, 9, 11, 11, 11, 12, 13, 13, 15, 15, 15, 16, 17, 17, 19, 20, 20, 23, 24, 24, 26, 27, 27, 30, 31, 31, 33, 34, 35, 38, 40, 40, 44, 45, 46, 49, 51, 51, 56, 57, 58, 61, 63, 64, 69, 72, 73, 78, 80, 81, 86, 89, 90, 96, 98, 99, 105, 108, 110, 116, 120, 121, 130]

cp's OEIS Frontend

A278949 Expansion of Product_{k>=1} 1/(1 - x^(k(2k-1))).

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	2
8	2
9	2
10	2
11	2
12	3
13	3
14	3
15	4
16	4
17	4
18	5
19	5
20	5
21	6
22	6
23	6
24	7
25	7
26	7
27	8
28	9
29	9
30	11
31	11
32	11
33	12
34	13
35	13
36	15
37	15
38	15
39	16
40	17
41	17
42	19
43	20
44	20
45	23
46	24
47	24
48	26
49	27
50	27
51	30
52	31
53	31
54	33
55	34
56	35
57	38
58	40
59	40
60	44
61	45
62	46
63	49
64	51
65	51
66	56
67	57
68	58
69	61
70	63
71	64
72	69
73	72
74	73
75	78
76	80
77	81
78	86
79	89
80	90
81	96
82	98
83	99
84	105
85	108
86	110
87	116
88	120
89	121
90	130

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	2
8	2
9	2
10	2
11	2
12	3
13	3
14	3
15	4
16	4
17	4
18	5
19	5
20	5
21	6
22	6
23	6
24	7
25	7
26	7
27	8
28	9
29	9
30	11
31	11
32	11
33	12
34	13
35	13
36	15
37	15
38	15
39	16
40	17
41	17
42	19
43	20
44	20
45	23
46	24
47	24
48	26
49	27
50	27
51	30
52	31
53	31
54	33
55	34
56	35
57	38
58	40
59	40
60	44
61	45
62	46
63	49
64	51
65	51
66	56
67	57
68	58
69	61
70	63
71	64
72	69
73	72
74	73
75	78
76	80
77	81
78	86
79	89
80	90
81	96
82	98
83	99
84	105
85	108
86	110
87	116
88	120
89	121
90	130

cp's OEIS Frontend

A278949 Expansion of Product_{k>=1} 1/(1 - x^(k*(2*k-1))).

Table of values

List of values

A278949 Expansion of Product_{k>=1} 1/(1 - x^(k(2k-1))).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	2
8	2
9	2
10	2
11	2
12	3
13	3
14	3
15	4
16	4
17	4
18	5
19	5
20	5
21	6
22	6
23	6
24	7
25	7
26	7
27	8
28	9
29	9
30	11
31	11
32	11
33	12
34	13
35	13
36	15
37	15
38	15
39	16
40	17
41	17
42	19
43	20
44	20
45	23
46	24
47	24
48	26
49	27
50	27
51	30
52	31
53	31
54	33
55	34
56	35
57	38
58	40
59	40
60	44
61	45
62	46
63	49
64	51
65	51
66	56
67	57
68	58
69	61
70	63
71	64
72	69
73	72
74	73
75	78
76	80
77	81
78	86
79	89
80	90
81	96
82	98
83	99
84	105
85	108
86	110
87	116
88	120
89	121
90	130