A157225 - cp's OEIS frontend

A157225 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 5 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	1
12	1
13	0
14	2
15	1
16	0
17	2
18	3
19	1
20	2
21	4
22	1
23	2
24	4
25	2
26	2
27	3
28	2
29	2
30	4
31	2
32	4
33	4
34	1
35	5
36	5
37	2
38	5
39	7
40	1
41	3
42	7
43	2
44	4
45	8
46	2
47	4
48	3
49	2
50	4

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 2, 1, 0, 2, 3, 1, 2, 4, 1, 2, 4, 2, 2, 3, 2, 2, 4, 2, 4, 4, 1, 5, 5, 2, 5, 7, 1, 3, 7, 2, 4, 8, 2, 4, 3, 2, 4]

cp's OEIS Frontend

A157225 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 5 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	1
12	1
13	0
14	2
15	1
16	0
17	2
18	3
19	1
20	2
21	4
22	1
23	2
24	4
25	2
26	2
27	3
28	2
29	2
30	4
31	2
32	4
33	4
34	1
35	5
36	5
37	2
38	5
39	7
40	1
41	3
42	7
43	2
44	4
45	8
46	2
47	4
48	3
49	2
50	4

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

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