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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.

A154532 a(n) is the largest 10-digit number whose n-th power contains each digit (0-9) n times, or -1 no such number exists.

Table of values

n a(n)
1 9876543210
2 9994363488
3 9999257781
4 9999112926
5 9995722269
6 9999409158
7 9998033316
8 9993870774
9 9986053188
10 9964052493
11 9975246786
12 9966918135
13 9938689137
14 9998781633
15 9813743148
16 9970902252
17 9740383767
18 9829440591
19 9873773268
20 9985819785
21 9766102146
22 9863817738

List of values

[9876543210, 9994363488, 9999257781, 9999112926, 9995722269, 9999409158, 9998033316, 9993870774, 9986053188, 9964052493, 9975246786, 9966918135, 9938689137, 9998781633, 9813743148, 9970902252, 9740383767, 9829440591, 9873773268, 9985819785, 9766102146, 9863817738]

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

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