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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.

A262369 A(n,k) is the n-th prime whose decimal expansion begins with the decimal expansion of k; square array A(n,k), n>=1, k>=1, read by antidiagonals.

Table of values

n a(n)
1 11
2 2
3 13
4 3
5 23
6 17
7 41
8 31
9 29
10 19
11 5
12 43
13 37
14 211
15 101
16 61
17 53
18 47
19 307
20 223
21 103
22 7
23 67
24 59
25 401
26 311
27 227
28 107
29 83
30 71
31 601
32 503
33 409
34 313
35 229
36 109
37 97
38 89
39 73
40 607
41 509
42 419
43 317
44 233
45 113
46 101
47 907
48 809
49 79
50 613
51 521
52 421
53 331
54 239
55 127

List of values

[11, 2, 13, 3, 23, 17, 41, 31, 29, 19, 5, 43, 37, 211, 101, 61, 53, 47, 307, 223, 103, 7, 67, 59, 401, 311, 227, 107, 83, 71, 601, 503, 409, 313, 229, 109, 97, 89, 73, 607, 509, 419, 317, 233, 113, 101, 907, 809, 79, 613, 521, 421, 331, 239, 127]

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

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