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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.

A289636 Coefficients in expansion of -q*E'_4/E_4 where E_4 is the Eisenstein Series (A004009).

Table of values

n a(n)
1 -240
2 53280
3 -12288960
4 2835808320
5 -654403831200
6 151013228757120
7 -34848505552897920
8 8041801037378486400
9 -1855762905734676483120
10 428244362959801779806400
11 -98823634118413525094402880
12 22804995243537595828606337280

List of values

[-240, 53280, -12288960, 2835808320, -654403831200, 151013228757120, -34848505552897920, 8041801037378486400, -1855762905734676483120, 428244362959801779806400, -98823634118413525094402880, 22804995243537595828606337280]

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

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