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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.

A277540 n-th derivative of the ninth tetration of x (power tower of order 9) x^^9 at x=1.

Table of values

n a(n)
0 1
1 1
2 2
3 9
4 56
5 480
6 5094
7 65534
8 984808
9 16992144
10 327038880
11 6951172272
12 160900135032
13 4030551570864
14 108477114581640
15 3122444423175240
16 95686679702270784
17 3110711057099693568
18 106921473349790826432
19 3874480434910990168128
20 147622208056015906586880

List of values

[1, 1, 2, 9, 56, 480, 5094, 65534, 984808, 16992144, 327038880, 6951172272, 160900135032, 4030551570864, 108477114581640, 3122444423175240, 95686679702270784, 3110711057099693568, 106921473349790826432, 3874480434910990168128, 147622208056015906586880]

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

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