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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.

A279838 E.g.f. A(x) satisfies: A( sinh( A(x) ) ) = sin(x).

Table of values

n a(n)
1 1
2 -1
3 5
4 -113
5 4505
6 -324545
7 34312317
8 -5171466801
9 1036525185393
10 -268061777199361
11 86654517306871861
12 -34236056076864607345
13 16224034929841344607625
14 -9077085568599515191480769
15 5918716657866577845713460525
16 -4447229534037550877037585953073
17 3813957492790787345317821024498657
18 -3702048025219670721125627874960351233

List of values

[1, -1, 5, -113, 4505, -324545, 34312317, -5171466801, 1036525185393, -268061777199361, 86654517306871861, -34236056076864607345, 16224034929841344607625, -9077085568599515191480769, 5918716657866577845713460525, -4447229534037550877037585953073, 3813957492790787345317821024498657, -3702048025219670721125627874960351233]

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

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