A063883 - cp's OEIS frontend

A063883 Number of ways writing n as a sum of different Mersenne prime exponents (terms of A000043).

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

[0, 1, 1, 0, 2, 0, 2, 1, 1, 2, 0, 2, 1, 1, 2, 1, 2, 2, 2, 3, 2, 4, 2, 4, 3, 3, 4, 2, 4, 2, 4, 3, 3, 4, 3, 4, 4, 4, 5, 4, 5, 4, 4, 5, 3, 5, 3, 4, 4, 3, 5, 3, 5, 4, 4, 5, 4, 5, 4, 4, 5, 3, 5, 4, 3, 6, 2, 6, 3, 5, 5, 3, 6, 3, 5, 4, 4, 4, 4, 4, 4, 4, 5, 3, 6, 3, 5, 5, 4, 6, 3, 7, 3, 6, 5, 5, 6, 5, 6, 5, 6, 6, 5, 6, 6]

cp's OEIS Frontend

A063883 Number of ways writing n as a sum of different Mersenne prime exponents (terms of A000043).

Table of values

List of values

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

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

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