A157218 - cp's OEIS frontend

A157218 Number of ways to write the n-th positive odd integer in the form p+2^x+7*2^y with p a prime congruent to 1 mod 6 and x,y positive integers.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	0
15	2
16	1
17	0
18	2
19	3
20	1
21	1
22	3
23	1
24	1
25	4
26	2
27	3
28	2
29	1
30	3
31	3
32	2
33	3
34	5
35	1
36	2
37	5
38	2
39	4
40	5
41	1
42	4
43	3
44	1
45	4
46	7
47	1
48	5
49	7
50	2

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

cp's OEIS Frontend

A157218 Number of ways to write the n-th positive odd integer in the form p+2^x+7*2^y with p a prime congruent to 1 mod 6 and x,y positive integers.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	0
15	2
16	1
17	0
18	2
19	3
20	1
21	1
22	3
23	1
24	1
25	4
26	2
27	3
28	2
29	1
30	3
31	3
32	2
33	3
34	5
35	1
36	2
37	5
38	2
39	4
40	5
41	1
42	4
43	3
44	1
45	4
46	7
47	1
48	5
49	7
50	2

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	0
15	2
16	1
17	0
18	2
19	3
20	1
21	1
22	3
23	1
24	1
25	4
26	2
27	3
28	2
29	1
30	3
31	3
32	2
33	3
34	5
35	1
36	2
37	5
38	2
39	4
40	5
41	1
42	4
43	3
44	1
45	4
46	7
47	1
48	5
49	7
50	2

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	1
14	0
15	2
16	1
17	0
18	2
19	3
20	1
21	1
22	3
23	1
24	1
25	4
26	2
27	3
28	2
29	1
30	3
31	3
32	2
33	3
34	5
35	1
36	2
37	5
38	2
39	4
40	5
41	1
42	4
43	3
44	1
45	4
46	7
47	1
48	5
49	7
50	2