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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.

A013517 Denominator of [x^(2n+1)] in the Taylor expansion sin(cosec(x)-cot(x))= x/2 + x^3/48 - x^5/1280 - 55*x^7/129024 - 143*x^9/1769472 + ...

Table of values

n a(n)
0 2
1 48
2 1280
3 129024
4 1769472
5 81749606400
6 4637432217600
7 3296144130048000
8 46620662575398912000
9 750318428272302489600
10 5639235345120252395520000
11 72287478143981475374039040000
12 7543041197632849604247552000000
13 1461479318123759876522171695104000000
14 4746884825265972078944013665697792000000

List of values

[2, 48, 1280, 129024, 1769472, 81749606400, 4637432217600, 3296144130048000, 46620662575398912000, 750318428272302489600, 5639235345120252395520000, 72287478143981475374039040000, 7543041197632849604247552000000, 1461479318123759876522171695104000000, 4746884825265972078944013665697792000000]

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

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