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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.

A372147 Numbers k for which k and k^2 are digitally balanced numbers in base 3 (A049354).

Table of values

n a(n)
1 500
2 544
3 550
4 552
5 588
6 622
7 307172
8 307402
9 307888
10 308920
11 309480
12 309522
13 309604
14 310348
15 310422
16 310658
17 310754
18 310964
19 310974
20 310980
21 311206
22 311214
23 311342
24 311466
25 311582
26 311788
27 311790
28 312050
29 312070
30 312100
31 313022
32 313050
33 313336
34 313502
35 313512

List of values

[500, 544, 550, 552, 588, 622, 307172, 307402, 307888, 308920, 309480, 309522, 309604, 310348, 310422, 310658, 310754, 310964, 310974, 310980, 311206, 311214, 311342, 311466, 311582, 311788, 311790, 312050, 312070, 312100, 313022, 313050, 313336, 313502, 313512]

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

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