A292774 - cp's OEIS frontend

A292774 a(n) = smallest m such that Sum_{i=1..m} 1/sqrt(prime(i)) >= n.

n	a(n)
1	2
2	4
3	8
4	13
5	21
6	30
7	43
8	58
9	76
10	97
11	121
12	149
13	180
14	214
15	252
16	294
17	340
18	390
19	444
20	502
21	564
22	630
23	700
24	775
25	854
26	937
27	1025
28	1118
29	1215
30	1317
31	1423
32	1535
33	1650
34	1771
35	1897
36	2027
37	2162
38	2303
39	2448
40	2598
41	2753
42	2914
43	3079
44	3250
45	3426
46	3607
47	3793
48	3984
49	4181
50	4383
51	4591
52	4803
53	5022
54	5245
55	5474
56	5709

[2, 4, 8, 13, 21, 30, 43, 58, 76, 97, 121, 149, 180, 214, 252, 294, 340, 390, 444, 502, 564, 630, 700, 775, 854, 937, 1025, 1118, 1215, 1317, 1423, 1535, 1650, 1771, 1897, 2027, 2162, 2303, 2448, 2598, 2753, 2914, 3079, 3250, 3426, 3607, 3793, 3984, 4181, 4383, 4591, 4803, 5022, 5245, 5474, 5709]

cp's OEIS Frontend

A292774 a(n) = smallest m such that Sum_{i=1..m} 1/sqrt(prime(i)) >= n.

Table of values

List of values