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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A291153 a(n) is the prime index of A191304(n+1).

Table of values

n a(n)
1 3
2 5
3 9
4 15
5 26
6 51
7 91
8 160
9 290
10 526
11 959
12 1767
13 3279
14 6113
15 11426
16 21456
17 40448
18 76548
19 145205
20 276032
21 526142
22 1004977
23 1924032
24 3689162
25 7086486
26 13633821
27 26269617
28 50680636
29 97899691
30 189336057
31 366569494
32 710444878
33 1378224063
34 2676107406
35 5200648226
36 10114912373
37 19687771058
38 38348128843
39 74746149884
40 145785668141
41 284517554507
42 555594884599
43 1085551499862
44 2122142209034
45 4150687469435

List of values

[3, 5, 9, 15, 26, 51, 91, 160, 290, 526, 959, 1767, 3279, 6113, 11426, 21456, 40448, 76548, 145205, 276032, 526142, 1004977, 1924032, 3689162, 7086486, 13633821, 26269617, 50680636, 97899691, 189336057, 366569494, 710444878, 1378224063, 2676107406, 5200648226, 10114912373, 19687771058, 38348128843, 74746149884, 145785668141, 284517554507, 555594884599, 1085551499862, 2122142209034, 4150687469435]

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