A279360 - cp's OEIS frontend

A279360 Expansion of Product_{k>=1} (1+2*x^(k^2)).

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

[1, 2, 0, 0, 2, 4, 0, 0, 0, 2, 4, 0, 0, 4, 8, 0, 2, 4, 0, 0, 4, 8, 0, 0, 0, 6, 12, 0, 0, 12, 24, 0, 0, 0, 4, 8, 2, 4, 8, 16, 4, 12, 8, 0, 0, 12, 24, 0, 0, 10, 28, 16, 4, 12, 24, 32, 8, 16, 4, 8, 0, 12, 32, 16, 2, 32, 56, 0, 4, 16, 24, 16, 0, 4, 36, 56, 0, 16]

cp's OEIS Frontend

A279360 Expansion of Product_{k>=1} (1+2*x^(k^2)).

Table of values

List of values

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

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

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