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.

A215643 n-th derivative of x^((x^(x^x))^x) at x=1.

Table of values

n a(n)
0 1
1 1
2 2
3 15
4 104
5 890
6 8814
7 100660
8 1288048
9 18337680
10 286674960
11 4882660464
12 89880715704
13 1777384045944
14 37552294300416
15 843830334815640
16 20086549955304384
17 504750167170162944
18 13348550475903813120
19 370499740676381737728
20 10766442934111876381440

List of values

[1, 1, 2, 15, 104, 890, 8814, 100660, 1288048, 18337680, 286674960, 4882660464, 89880715704, 1777384045944, 37552294300416, 843830334815640, 20086549955304384, 504750167170162944, 13348550475903813120, 370499740676381737728, 10766442934111876381440]

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

Content is available under The OEIS End-User License Agreement.