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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.

A145189 Continued cotangent recurrence a(n+1)=a(n)^3+3*a(n) and a(1)=15.

Table of values

n a(n)
1 15
2 3420
3 40001698260
4 64008151994095341241755497070780
5 262244184463346778261182615794616508638576477409715732397097802610370956164308073990185129764340

List of values

[15, 3420, 40001698260, 64008151994095341241755497070780, 262244184463346778261182615794616508638576477409715732397097802610370956164308073990185129764340]

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

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