A303932 - cp's OEIS frontend

A303932 Number of ways to write 2*n as p + 2^k + 3^m, where p is a prime with 11 a quadratic residue modulo p, and k and m are nonnegative integers.

n	a(n)
1	0
2	1
3	1
4	1
5	3
6	4
7	2
8	3
9	3
10	1
11	3
12	5
13	2
14	1
15	4
16	2
17	1
18	4
19	3
20	4
21	4
22	2
23	3
24	7
25	4
26	2
27	6
28	3
29	2
30	4
31	4
32	3
33	3
34	2
35	4
36	6
37	2
38	1
39	6
40	2
41	2
42	6
43	5
44	6
45	5
46	5
47	6
48	8
49	3
50	5
51	8
52	5
53	3
54	7
55	6
56	5
57	7
58	6
59	9
60	7
61	5
62	7
63	7
64	3
65	5
66	9
67	5
68	7
69	9
70	6
71	11
72	10
73	5
74	11
75	10
76	4
77	5
78	13
79	3
80	5

[0, 1, 1, 1, 3, 4, 2, 3, 3, 1, 3, 5, 2, 1, 4, 2, 1, 4, 3, 4, 4, 2, 3, 7, 4, 2, 6, 3, 2, 4, 4, 3, 3, 2, 4, 6, 2, 1, 6, 2, 2, 6, 5, 6, 5, 5, 6, 8, 3, 5, 8, 5, 3, 7, 6, 5, 7, 6, 9, 7, 5, 7, 7, 3, 5, 9, 5, 7, 9, 6, 11, 10, 5, 11, 10, 4, 5, 13, 3, 5]

cp's OEIS Frontend

A303932 Number of ways to write 2*n as p + 2^k + 3^m, where p is a prime with 11 a quadratic residue modulo p, and k and m are nonnegative integers.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	3
6	4
7	2
8	3
9	3
10	1
11	3
12	5
13	2
14	1
15	4
16	2
17	1
18	4
19	3
20	4
21	4
22	2
23	3
24	7
25	4
26	2
27	6
28	3
29	2
30	4
31	4
32	3
33	3
34	2
35	4
36	6
37	2
38	1
39	6
40	2
41	2
42	6
43	5
44	6
45	5
46	5
47	6
48	8
49	3
50	5
51	8
52	5
53	3
54	7
55	6
56	5
57	7
58	6
59	9
60	7
61	5
62	7
63	7
64	3
65	5
66	9
67	5
68	7
69	9
70	6
71	11
72	10
73	5
74	11
75	10
76	4
77	5
78	13
79	3
80	5

n	a(n)
1	0
2	1
3	1
4	1
5	3
6	4
7	2
8	3
9	3
10	1
11	3
12	5
13	2
14	1
15	4
16	2
17	1
18	4
19	3
20	4
21	4
22	2
23	3
24	7
25	4
26	2
27	6
28	3
29	2
30	4
31	4
32	3
33	3
34	2
35	4
36	6
37	2
38	1
39	6
40	2
41	2
42	6
43	5
44	6
45	5
46	5
47	6
48	8
49	3
50	5
51	8
52	5
53	3
54	7
55	6
56	5
57	7
58	6
59	9
60	7
61	5
62	7
63	7
64	3
65	5
66	9
67	5
68	7
69	9
70	6
71	11
72	10
73	5
74	11
75	10
76	4
77	5
78	13
79	3
80	5

n	a(n)
1	0
2	1
3	1
4	1
5	3
6	4
7	2
8	3
9	3
10	1
11	3
12	5
13	2
14	1
15	4
16	2
17	1
18	4
19	3
20	4
21	4
22	2
23	3
24	7
25	4
26	2
27	6
28	3
29	2
30	4
31	4
32	3
33	3
34	2
35	4
36	6
37	2
38	1
39	6
40	2
41	2
42	6
43	5
44	6
45	5
46	5
47	6
48	8
49	3
50	5
51	8
52	5
53	3
54	7
55	6
56	5
57	7
58	6
59	9
60	7
61	5
62	7
63	7
64	3
65	5
66	9
67	5
68	7
69	9
70	6
71	11
72	10
73	5
74	11
75	10
76	4
77	5
78	13
79	3
80	5