A118953 - cp's OEIS frontend

A118953 Number of ways to write the n-th prime as 2^k + p, where p is prime and p < 2^k.

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

[0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1]

cp's OEIS Frontend

A118953 Number of ways to write the n-th prime as 2^k + p, where p is prime and p < 2^k.

Table of values

List of values

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

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

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