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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.

A045542 Sub-perfect powers: perfect powers (squares, cubes etc.) minus 1.

Table of values

n a(n)
1 3
2 7
3 8
4 15
5 24
6 26
7 31
8 35
9 48
10 63
11 80
12 99
13 120
14 124
15 127
16 143
17 168
18 195
19 215
20 224
21 242
22 255
23 288
24 323
25 342
26 360
27 399
28 440
29 483
30 511
31 528
32 575
33 624
34 675
35 728
36 783
37 840
38 899
39 960
40 999
41 1023
42 1088
43 1155
44 1224
45 1295
46 1330
47 1368
48 1443
49 1520
50 1599
51 1680
52 1727

List of values

[3, 7, 8, 15, 24, 26, 31, 35, 48, 63, 80, 99, 120, 124, 127, 143, 168, 195, 215, 224, 242, 255, 288, 323, 342, 360, 399, 440, 483, 511, 528, 575, 624, 675, 728, 783, 840, 899, 960, 999, 1023, 1088, 1155, 1224, 1295, 1330, 1368, 1443, 1520, 1599, 1680, 1727]

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

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