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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.

A171775 a(n) = smallest number M such that there exist bases b_2, b_3, ..., b_n with the property that M written in base b_k is a k-digit palindrome for all k=2..n.

Table of values

n a(n)
1 1
2 3
3 5
4 52
5 130
6 1885
7 1073741824
8 4398046511104

List of values

[1, 3, 5, 52, 130, 1885, 1073741824, 4398046511104]

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

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