A140528 - cp's OEIS frontend

A140528 Sum of digits of Mersenne prime exponents.

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

[2, 3, 5, 7, 4, 8, 10, 4, 7, 17, 8, 10, 8, 13, 19, 7, 13, 13, 14, 13, 32, 23, 8, 29, 11, 16, 28, 23, 10, 19, 19, 38, 32, 37, 38, 29, 23, 41, 37, 28, 31, 41, 25, 38, 41, 28, 26, 41]

cp's OEIS Frontend

A140528 Sum of digits of Mersenne prime exponents.

Table of values

List of values

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

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

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