cp's OEIS Frontend

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.

A320868 Primes such that p + digitsum(p, base 8) is again a prime.

Table of values

n a(n)
1 13
2 29
3 31
4 41
5 47
6 61
7 67
8 71
9 83
10 97
11 157
12 193
13 229
14 241
15 271
16 283
17 373
18 397
19 409
20 431
21 449
22 467
23 503
24 587
25 601
26 607
27 761
28 787
29 929
30 971
31 991
32 1039
33 1087
34 1091
35 1163
36 1181
37 1213
38 1217
39 1237
40 1249
41 1289
42 1291
43 1307
44 1423
45 1453
46 1471
47 1511
48 1543
49 1553
50 1559
51 1627
52 1657
53 1741
54 1811
55 1847
56 1867
57 1973
58 1999

List of values

[13, 29, 31, 41, 47, 61, 67, 71, 83, 97, 157, 193, 229, 241, 271, 283, 373, 397, 409, 431, 449, 467, 503, 587, 601, 607, 761, 787, 929, 971, 991, 1039, 1087, 1091, 1163, 1181, 1213, 1217, 1237, 1249, 1289, 1291, 1307, 1423, 1453, 1471, 1511, 1543, 1553, 1559, 1627, 1657, 1741, 1811, 1847, 1867, 1973, 1999]