A304032 - cp's OEIS frontend

A304032 Number of ways to write 2*n as p + 2^k + 3^m with p prime and 2^k + 3^m a product of at most two distinct primes, where k and m are nonnegative integers.

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

[0, 1, 1, 3, 4, 4, 4, 6, 6, 5, 8, 9, 4, 6, 7, 4, 9, 10, 6, 9, 10, 6, 11, 14, 7, 9, 11, 5, 10, 9, 6, 12, 10, 3, 11, 15, 7, 12, 16, 7, 9, 14, 9, 12, 14, 8, 12, 16, 5, 12, 18, 10, 12, 16, 9, 12, 19, 10, 13, 17, 6, 10, 15, 6, 10, 16, 10, 12, 15, 10, 17, 20, 8, 14, 15, 8, 11, 18, 9, 12]

cp's OEIS Frontend

A304032 Number of ways to write 2*n as p + 2^k + 3^m with p prime and 2^k + 3^m a product of at most two distinct primes, where k and m are nonnegative integers.

Table of values

List of values

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

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

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