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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.

A097374 Perfect 4-composites: a perfect 4-composite is a natural number that can be represented in the form a^(a^(a^........(a^(a) ) ) ) for some natural number a and some number b>=1 of up-arrows.

Table of values

n a(n)
1 4
2 16
3 27
4 256
5 3125
6 46656
7 65536
8 823543
9 16777216
10 387420489
11 10000000000
12 285311670611
13 7625597484987
14 8916100448256
15 302875106592253
16 11112006825558016
17 437893890380859375
18 18446744073709551616
19 827240261886336764177
20 39346408075296537575424
21 1978419655660313589123979
22 104857600000000000000000000

List of values

[4, 16, 27, 256, 3125, 46656, 65536, 823543, 16777216, 387420489, 10000000000, 285311670611, 7625597484987, 8916100448256, 302875106592253, 11112006825558016, 437893890380859375, 18446744073709551616, 827240261886336764177, 39346408075296537575424, 1978419655660313589123979, 104857600000000000000000000]

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

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