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.

A261493 Palindromes that are concatenation of palindromic prime numbers in increasing order up to the n-th and then in decreasing order.

Table of values

n a(n)
1 2
2 232
3 23532
4 2357532
5 2357117532
6 235711101117532
7 235711101131101117532
8 235711101131151131101117532
9 235711101131151181151131101117532
10 235711101131151181191181151131101117532
11 235711101131151181191313191181151131101117532

List of values

[2, 232, 23532, 2357532, 2357117532, 235711101117532, 235711101131101117532, 235711101131151131101117532, 235711101131151181151131101117532, 235711101131151181191181151131101117532, 235711101131151181191313191181151131101117532]

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

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