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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.

A285216 Indices of primes in A000219.

Table of values

n a(n)
1 2
2 4
3 11
4 30
5 32
6 40
7 50
8 85
9 100
10 237
11 381
12 733
13 805
14 882
15 1015
16 1650
17 2439
18 3163
19 3335
20 3506
21 3675
22 4152
23 4446
24 4576
25 5010
26 5101
27 6045
28 6760
29 7412
30 8178
31 8562
32 10026
33 10527
34 10888
35 12406
36 12693
37 13479
38 16109
39 16978
40 17962
41 20696
42 22483
43 25383
44 31458
45 38956

List of values

[2, 4, 11, 30, 32, 40, 50, 85, 100, 237, 381, 733, 805, 882, 1015, 1650, 2439, 3163, 3335, 3506, 3675, 4152, 4446, 4576, 5010, 5101, 6045, 6760, 7412, 8178, 8562, 10026, 10527, 10888, 12406, 12693, 13479, 16109, 16978, 17962, 20696, 22483, 25383, 31458, 38956]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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