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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.

A381878 Prime numbers p such that the sum of the d_i-th prime numbers, where (d_i) are the nonzero digits of p, is also a prime.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 13
6 17
7 31
8 71
9 103
10 107
11 181
12 211
13 223
14 227
15 229
16 233
17 239
18 257
19 277
20 293
21 347
22 383
23 389
24 433
25 443
26 449
27 467
28 479
29 487
30 499
31 523
32 563
33 569
34 587
35 647
36 653
37 659
38 677
39 683
40 701
41 727
42 743
43 769
44 787
45 811
46 839
47 857
48 859
49 863
50 877
51 883
52 947
53 967
54 983

List of values

[2, 3, 5, 7, 13, 17, 31, 71, 103, 107, 181, 211, 223, 227, 229, 233, 239, 257, 277, 293, 347, 383, 389, 433, 443, 449, 467, 479, 487, 499, 523, 563, 569, 587, 647, 653, 659, 677, 683, 701, 727, 743, 769, 787, 811, 839, 857, 859, 863, 877, 883, 947, 967, 983]

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

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