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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.

A319667 Palindromes a(n) = (10^n + 1)*(10^(n+1) + 1).

Table of values

n a(n)
0 22
1 1111
2 101101
3 10011001
4 1000110001
5 100001100001
6 10000011000001
7 1000000110000001
8 100000001100000001
9 10000000011000000001
10 1000000000110000000001
11 100000000001100000000001
12 10000000000011000000000001
13 1000000000000110000000000001

List of values

[22, 1111, 101101, 10011001, 1000110001, 100001100001, 10000011000001, 1000000110000001, 100000001100000001, 10000000011000000001, 1000000000110000000001, 100000000001100000000001, 10000000000011000000000001, 1000000000000110000000000001]

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

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