A280596 - cp's OEIS frontend

A280596 Expansion of Product_{p prime, k>=2} (1 + x^(p^k)).

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	0
7	0
8	1
9	1
10	0
11	0
12	1
13	1
14	0
15	0
16	1
17	1
18	0
19	0
20	1
21	1
22	0
23	0
24	1
25	2
26	0
27	1
28	1
29	2
30	0
31	1
32	1
33	2
34	1
35	1
36	2
37	2
38	1
39	1
40	2
41	2
42	1
43	1
44	2
45	2
46	1
47	1
48	2
49	3
50	1
51	1
52	3
53	3
54	1
55	1
56	3
57	3
58	2
59	1
60	3
61	4
62	2
63	1
64	3
65	4
66	2
67	1
68	3
69	4
70	2
71	1
72	3
73	4
74	3
75	1
76	4
77	4
78	3
79	1
80	4
81	5
82	3
83	2
84	4
85	6
86	3
87	2
88	4
89	6
90	4
91	2
92	4
93	6
94	4
95	2
96	4
97	6
98	4
99	2
100	4
101	7
102	4
103	2
104	4
105	7
106	5
107	2

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

cp's OEIS Frontend

A280596 Expansion of Product_{p prime, k>=2} (1 + x^(p^k)).

Table of values

List of values

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	0
7	0
8	1
9	1
10	0
11	0
12	1
13	1
14	0
15	0
16	1
17	1
18	0
19	0
20	1
21	1
22	0
23	0
24	1
25	2
26	0
27	1
28	1
29	2
30	0
31	1
32	1
33	2
34	1
35	1
36	2
37	2
38	1
39	1
40	2
41	2
42	1
43	1
44	2
45	2
46	1
47	1
48	2
49	3
50	1
51	1
52	3
53	3
54	1
55	1
56	3
57	3
58	2
59	1
60	3
61	4
62	2
63	1
64	3
65	4
66	2
67	1
68	3
69	4
70	2
71	1
72	3
73	4
74	3
75	1
76	4
77	4
78	3
79	1
80	4
81	5
82	3
83	2
84	4
85	6
86	3
87	2
88	4
89	6
90	4
91	2
92	4
93	6
94	4
95	2
96	4
97	6
98	4
99	2
100	4
101	7
102	4
103	2
104	4
105	7
106	5
107	2

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	0
7	0
8	1
9	1
10	0
11	0
12	1
13	1
14	0
15	0
16	1
17	1
18	0
19	0
20	1
21	1
22	0
23	0
24	1
25	2
26	0
27	1
28	1
29	2
30	0
31	1
32	1
33	2
34	1
35	1
36	2
37	2
38	1
39	1
40	2
41	2
42	1
43	1
44	2
45	2
46	1
47	1
48	2
49	3
50	1
51	1
52	3
53	3
54	1
55	1
56	3
57	3
58	2
59	1
60	3
61	4
62	2
63	1
64	3
65	4
66	2
67	1
68	3
69	4
70	2
71	1
72	3
73	4
74	3
75	1
76	4
77	4
78	3
79	1
80	4
81	5
82	3
83	2
84	4
85	6
86	3
87	2
88	4
89	6
90	4
91	2
92	4
93	6
94	4
95	2
96	4
97	6
98	4
99	2
100	4
101	7
102	4
103	2
104	4
105	7
106	5
107	2

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	0
7	0
8	1
9	1
10	0
11	0
12	1
13	1
14	0
15	0
16	1
17	1
18	0
19	0
20	1
21	1
22	0
23	0
24	1
25	2
26	0
27	1
28	1
29	2
30	0
31	1
32	1
33	2
34	1
35	1
36	2
37	2
38	1
39	1
40	2
41	2
42	1
43	1
44	2
45	2
46	1
47	1
48	2
49	3
50	1
51	1
52	3
53	3
54	1
55	1
56	3
57	3
58	2
59	1
60	3
61	4
62	2
63	1
64	3
65	4
66	2
67	1
68	3
69	4
70	2
71	1
72	3
73	4
74	3
75	1
76	4
77	4
78	3
79	1
80	4
81	5
82	3
83	2
84	4
85	6
86	3
87	2
88	4
89	6
90	4
91	2
92	4
93	6
94	4
95	2
96	4
97	6
98	4
99	2
100	4
101	7
102	4
103	2
104	4
105	7
106	5
107	2