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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.

A262639 Minimal nested palindromic base-4 primes with seed 3; see Comments.

Table of values

n a(n)
1 3
2 131
3 11311
4 121131121
5 1212113112121
6 312121131121213
7 101312121131121213101
8 11131013121211311212131013111
9 31311131013121211311212131013111313
10 1011313111310131212113112121310131113131101
11 310113131113101312121131121213101311131311013

List of values

[3, 131, 11311, 121131121, 1212113112121, 312121131121213, 101312121131121213101, 11131013121211311212131013111, 31311131013121211311212131013111313, 1011313111310131212113112121310131113131101, 310113131113101312121131121213101311131311013]

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

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