A281423 - cp's OEIS frontend

A281423 Expansion of (Sum_{k>=1} x^prime(prime(k)))^2 [even terms only].

n	a(n)
0	0
1	0
2	0
3	1
4	2
5	1
6	0
7	2
8	2
9	0
10	2
11	3
12	0
13	0
14	2
15	0
16	0
17	3
18	2
19	0
20	0
21	2
22	2
23	2
24	2
25	0
26	2
27	0
28	0
29	2
30	0
31	3
32	2
33	0
34	0
35	4
36	4
37	0
38	2
39	2
40	0
41	1
42	2
43	2
44	2
45	2
46	0
47	2
48	0
49	2
50	4
51	0
52	0
53	0
54	2
55	0
56	2
57	4
58	0
59	1
60	2
61	0
62	2
63	4
64	0
65	2
66	2
67	1
68	0
69	2
70	2
71	2
72	2
73	0
74	0
75	4
76	0
77	0
78	0
79	2
80	2
81	2
82	0
83	1
84	6
85	0
86	0
87	2
88	2
89	0
90	0
91	2
92	2
93	2
94	2
95	2
96	2
97	4
98	4
99	2
100	0
101	2
102	0
103	0
104	2
105	4
106	0
107	2
108	4
109	1
110	2
111	4

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

cp's OEIS Frontend

A281423 Expansion of (Sum_{k>=1} x^prime(prime(k)))^2 [even terms only].

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	1
4	2
5	1
6	0
7	2
8	2
9	0
10	2
11	3
12	0
13	0
14	2
15	0
16	0
17	3
18	2
19	0
20	0
21	2
22	2
23	2
24	2
25	0
26	2
27	0
28	0
29	2
30	0
31	3
32	2
33	0
34	0
35	4
36	4
37	0
38	2
39	2
40	0
41	1
42	2
43	2
44	2
45	2
46	0
47	2
48	0
49	2
50	4
51	0
52	0
53	0
54	2
55	0
56	2
57	4
58	0
59	1
60	2
61	0
62	2
63	4
64	0
65	2
66	2
67	1
68	0
69	2
70	2
71	2
72	2
73	0
74	0
75	4
76	0
77	0
78	0
79	2
80	2
81	2
82	0
83	1
84	6
85	0
86	0
87	2
88	2
89	0
90	0
91	2
92	2
93	2
94	2
95	2
96	2
97	4
98	4
99	2
100	0
101	2
102	0
103	0
104	2
105	4
106	0
107	2
108	4
109	1
110	2
111	4

n	a(n)
0	0
1	0
2	0
3	1
4	2
5	1
6	0
7	2
8	2
9	0
10	2
11	3
12	0
13	0
14	2
15	0
16	0
17	3
18	2
19	0
20	0
21	2
22	2
23	2
24	2
25	0
26	2
27	0
28	0
29	2
30	0
31	3
32	2
33	0
34	0
35	4
36	4
37	0
38	2
39	2
40	0
41	1
42	2
43	2
44	2
45	2
46	0
47	2
48	0
49	2
50	4
51	0
52	0
53	0
54	2
55	0
56	2
57	4
58	0
59	1
60	2
61	0
62	2
63	4
64	0
65	2
66	2
67	1
68	0
69	2
70	2
71	2
72	2
73	0
74	0
75	4
76	0
77	0
78	0
79	2
80	2
81	2
82	0
83	1
84	6
85	0
86	0
87	2
88	2
89	0
90	0
91	2
92	2
93	2
94	2
95	2
96	2
97	4
98	4
99	2
100	0
101	2
102	0
103	0
104	2
105	4
106	0
107	2
108	4
109	1
110	2
111	4

n	a(n)
0	0
1	0
2	0
3	1
4	2
5	1
6	0
7	2
8	2
9	0
10	2
11	3
12	0
13	0
14	2
15	0
16	0
17	3
18	2
19	0
20	0
21	2
22	2
23	2
24	2
25	0
26	2
27	0
28	0
29	2
30	0
31	3
32	2
33	0
34	0
35	4
36	4
37	0
38	2
39	2
40	0
41	1
42	2
43	2
44	2
45	2
46	0
47	2
48	0
49	2
50	4
51	0
52	0
53	0
54	2
55	0
56	2
57	4
58	0
59	1
60	2
61	0
62	2
63	4
64	0
65	2
66	2
67	1
68	0
69	2
70	2
71	2
72	2
73	0
74	0
75	4
76	0
77	0
78	0
79	2
80	2
81	2
82	0
83	1
84	6
85	0
86	0
87	2
88	2
89	0
90	0
91	2
92	2
93	2
94	2
95	2
96	2
97	4
98	4
99	2
100	0
101	2
102	0
103	0
104	2
105	4
106	0
107	2
108	4
109	1
110	2
111	4