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.

A090516 Perfect powers (at least a square) in which neighboring digits are distinct.

Table of values

n a(n)
1 1
2 4
3 8
4 9
5 16
6 25
7 27
8 32
9 36
10 49
11 64
12 81
13 121
14 125
15 128
16 169
17 196
18 216
19 243
20 256
21 289
22 324
23 343
24 361
25 484
26 512
27 529
28 576
29 625
30 676
31 729
32 784
33 841
34 961
35 1024
36 1089
37 1296
38 1369
39 1521
40 1681
41 1728
42 1764
43 1849
44 1936
45 2025
46 2048
47 2187
48 2197
49 2304
50 2401
51 2601

List of values

[1, 4, 8, 9, 16, 25, 27, 32, 36, 49, 64, 81, 121, 125, 128, 169, 196, 216, 243, 256, 289, 324, 343, 361, 484, 512, 529, 576, 625, 676, 729, 784, 841, 961, 1024, 1089, 1296, 1369, 1521, 1681, 1728, 1764, 1849, 1936, 2025, 2048, 2187, 2197, 2304, 2401, 2601]

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

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