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.

A254071 Numbers n such that the decimal expansions of both n and n^2 have 4 as the digit with the smallest value and 8 as the digit with the largest value.

Table of values

n a(n)
1 684
2 6684
3 8874
4 66684
5 68474
6 74758
7 76478
8 86478
9 666684
10 668474
11 675684
12 744758
13 766458
14 6666684
15 6668474
16 6675684
17 6748678
18 6845784
19 7586478
20 8686574
21 8875684
22 66666684
23 66756684
24 74744758
25 74758576
26 75858874
27 75867574
28 76464878
29 86878458
30 87546878

List of values

[684, 6684, 8874, 66684, 68474, 74758, 76478, 86478, 666684, 668474, 675684, 744758, 766458, 6666684, 6668474, 6675684, 6748678, 6845784, 7586478, 8686574, 8875684, 66666684, 66756684, 74744758, 74758576, 75858874, 75867574, 76464878, 86878458, 87546878]

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

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