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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.

A004231 Ackermann's sequence: n^^n := n^n^n^...^n (with n n's).

Table of values

n	a(n)
0	1
1	1
2	4
3	7625597484987

List of values

[1, 1, 4, 7625597484987]

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

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