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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.

A257486 Numbers n such that the decimal expansions of both n and n^2 have 3 as smallest digit and 7 as largest digit.

Table of values

n a(n)
1 6734
2 67434
3 577734
4 667334
5 745356
6 6674334
7 6734744
8 6756734
9 7373376
10 7453574
11 7466434
12 7533576
13 66673334
14 67345644
15 67656734
16 74547734
17 74656376
18 75733576
19 666743334
20 667335356
21 746556344
22 5775434474
23 6666733334
24 6666733576
25 6676476434
26 7447533576

List of values

[6734, 67434, 577734, 667334, 745356, 6674334, 6734744, 6756734, 7373376, 7453574, 7466434, 7533576, 66673334, 67345644, 67656734, 74547734, 74656376, 75733576, 666743334, 667335356, 746556344, 5775434474, 6666733334, 6666733576, 6676476434, 7447533576]

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

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