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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.

A351515 Expansion of e.g.f. (exp(exp(exp(exp(exp(x)-1)-1)-1)-1)-1)^2 / 2.

Table of values

n a(n)
2 1
3 15
4 215
5 3325
6 56605
7 1060780
8 21772595
9 486459105
10 11760431325
11 305942552245
12 8521928511915
13 253041654671949
14 7977871631560394
15 266128899746035160
16 9363456107172891499
17 346487270686107589124
18 13450341325170239245308
19 546470289216642540029570

List of values

[1, 15, 215, 3325, 56605, 1060780, 21772595, 486459105, 11760431325, 305942552245, 8521928511915, 253041654671949, 7977871631560394, 266128899746035160, 9363456107172891499, 346487270686107589124, 13450341325170239245308, 546470289216642540029570]

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

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