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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.

A271637 Squared-squares in base 2: numbers n such that n^2 in base 2 is of the form xx for a string x.

Table of values

n a(n)
1 6
2 820
3 104391567
4 119304648
5 858993460
6 900719925474100
7 26202761468337432
8 29478106651879611
9 32753451835421790
10 225701339254799219773
11 243062980735937621294
12 260424622217076022815
13 277786263698214424336
14 944473296573929042740
15 232485734541274841289650

List of values

[6, 820, 104391567, 119304648, 858993460, 900719925474100, 26202761468337432, 29478106651879611, 32753451835421790, 225701339254799219773, 243062980735937621294, 260424622217076022815, 277786263698214424336, 944473296573929042740, 232485734541274841289650]

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

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