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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.

A080831 Expansion of e.g.f. exp(tan(exp(x)-1)).

Table of values

n a(n)
0 1
1 1
2 2
3 7
4 35
5 218
6 1619
7 13973
8 137216
9 1508981
10 18360015
11 244770120
12 3547043469
13 55499654941
14 932309976082
15 16732137304363
16 319458645821311
17 6464376124430434
18 138181652330967287
19 3111035191655067585
20 73576818170267997096
21 1823567097183804766897
22 47261433984395105921195

List of values

[1, 1, 2, 7, 35, 218, 1619, 13973, 137216, 1508981, 18360015, 244770120, 3547043469, 55499654941, 932309976082, 16732137304363, 319458645821311, 6464376124430434, 138181652330967287, 3111035191655067585, 73576818170267997096, 1823567097183804766897, 47261433984395105921195]

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

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