A091816 - cp's OEIS frontend

A091816 Numbers m such that the numerator of Sum_{i=1..m} (i+1)/i is prime.

n	a(n)
1	1
2	2
3	3
4	4
5	8
6	14
7	15
8	17
9	19
10	21
11	22
12	27
13	28
14	31
15	55
16	59
17	80
18	108
19	114
20	126
21	199
22	225
23	248
24	316
25	352
26	406
27	467
28	601
29	875
30	1016
31	1040
32	1056
33	1095
34	1245
35	1252
36	1418
37	1468
38	1471
39	1496
40	1627
41	1724
42	1728
43	1873
44	1892
45	2015
46	2039
47	2684
48	2971
49	3043
50	3165
51	3226
52	3368
53	3429

[1, 2, 3, 4, 8, 14, 15, 17, 19, 21, 22, 27, 28, 31, 55, 59, 80, 108, 114, 126, 199, 225, 248, 316, 352, 406, 467, 601, 875, 1016, 1040, 1056, 1095, 1245, 1252, 1418, 1468, 1471, 1496, 1627, 1724, 1728, 1873, 1892, 2015, 2039, 2684, 2971, 3043, 3165, 3226, 3368, 3429]

cp's OEIS Frontend

A091816 Numbers m such that the numerator of Sum_{i=1..m} (i+1)/i is prime.

Table of values

List of values