A303907 - cp's OEIS frontend

A303907 Expansion of Product_{k>=2} (1 + x^(k*(k+1)/2)).

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	0
6	1
7	0
8	0
9	1
10	1
11	0
12	0
13	1
14	0
15	1
16	1
17	0
18	1
19	1
20	0
21	2
22	0
23	0
24	2
25	1
26	0
27	1
28	2
29	0
30	1
31	3
32	0
33	0
34	3
35	0
36	2
37	2
38	1
39	2
40	1
41	1
42	2
43	1
44	1
45	3
46	3
47	1
48	1
49	4
50	0
51	2
52	4
53	1
54	2
55	5
56	1
57	2
58	3
59	2
60	3
61	3
62	2
63	2
64	5
65	2
66	4
67	4
68	2
69	3
70	6
71	1
72	3
73	6
74	3
75	3
76	7
77	2
78	2
79	7
80	3
81	5
82	6
83	5
84	4
85	6
86	4
87	5
88	5
89	5
90	4
91	10
92	4
93	3
94	11
95	3

[1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 2, 0, 0, 2, 1, 0, 1, 2, 0, 1, 3, 0, 0, 3, 0, 2, 2, 1, 2, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 0, 2, 4, 1, 2, 5, 1, 2, 3, 2, 3, 3, 2, 2, 5, 2, 4, 4, 2, 3, 6, 1, 3, 6, 3, 3, 7, 2, 2, 7, 3, 5, 6, 5, 4, 6, 4, 5, 5, 5, 4, 10, 4, 3, 11, 3]

cp's OEIS Frontend

A303907 Expansion of Product_{k>=2} (1 + x^(k*(k+1)/2)).

Table of values

List of values

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	0
6	1
7	0
8	0
9	1
10	1
11	0
12	0
13	1
14	0
15	1
16	1
17	0
18	1
19	1
20	0
21	2
22	0
23	0
24	2
25	1
26	0
27	1
28	2
29	0
30	1
31	3
32	0
33	0
34	3
35	0
36	2
37	2
38	1
39	2
40	1
41	1
42	2
43	1
44	1
45	3
46	3
47	1
48	1
49	4
50	0
51	2
52	4
53	1
54	2
55	5
56	1
57	2
58	3
59	2
60	3
61	3
62	2
63	2
64	5
65	2
66	4
67	4
68	2
69	3
70	6
71	1
72	3
73	6
74	3
75	3
76	7
77	2
78	2
79	7
80	3
81	5
82	6
83	5
84	4
85	6
86	4
87	5
88	5
89	5
90	4
91	10
92	4
93	3
94	11
95	3

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	0
6	1
7	0
8	0
9	1
10	1
11	0
12	0
13	1
14	0
15	1
16	1
17	0
18	1
19	1
20	0
21	2
22	0
23	0
24	2
25	1
26	0
27	1
28	2
29	0
30	1
31	3
32	0
33	0
34	3
35	0
36	2
37	2
38	1
39	2
40	1
41	1
42	2
43	1
44	1
45	3
46	3
47	1
48	1
49	4
50	0
51	2
52	4
53	1
54	2
55	5
56	1
57	2
58	3
59	2
60	3
61	3
62	2
63	2
64	5
65	2
66	4
67	4
68	2
69	3
70	6
71	1
72	3
73	6
74	3
75	3
76	7
77	2
78	2
79	7
80	3
81	5
82	6
83	5
84	4
85	6
86	4
87	5
88	5
89	5
90	4
91	10
92	4
93	3
94	11
95	3

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	0
6	1
7	0
8	0
9	1
10	1
11	0
12	0
13	1
14	0
15	1
16	1
17	0
18	1
19	1
20	0
21	2
22	0
23	0
24	2
25	1
26	0
27	1
28	2
29	0
30	1
31	3
32	0
33	0
34	3
35	0
36	2
37	2
38	1
39	2
40	1
41	1
42	2
43	1
44	1
45	3
46	3
47	1
48	1
49	4
50	0
51	2
52	4
53	1
54	2
55	5
56	1
57	2
58	3
59	2
60	3
61	3
62	2
63	2
64	5
65	2
66	4
67	4
68	2
69	3
70	6
71	1
72	3
73	6
74	3
75	3
76	7
77	2
78	2
79	7
80	3
81	5
82	6
83	5
84	4
85	6
86	4
87	5
88	5
89	5
90	4
91	10
92	4
93	3
94	11
95	3