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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.

A321367 Palindromic primes p such that the highest factor of p+1 is a palindromic prime and the highest factor of p-1 is also a palindromic prime.

Table of values

n a(n)
1 3
2 5
3 7
4 11
5 383
6 38783
7 12211811221
8 18345254381
9 36729292763
10 70381018307
11 1852347432581
12 1874989894781
13 115582393285511
14 164257606752461
15 187610727016781
16 199239838932991
17 374147565741473
18 396089252980693
19 15243433533434251
20 18741272727214781
21 32547212721274523

List of values

[3, 5, 7, 11, 383, 38783, 12211811221, 18345254381, 36729292763, 70381018307, 1852347432581, 1874989894781, 115582393285511, 164257606752461, 187610727016781, 199239838932991, 374147565741473, 396089252980693, 15243433533434251, 18741272727214781, 32547212721274523]

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

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