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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.

A377221 Coefficients of the series whose 8th power is 1/x * series_reversion(x * E_4(x)), where E_4(x) is the Eisenstein series of weight 4.

Table of values

n a(n)
0 1
1 -30
2 10980
3 -5822040
4 3623245710
5 -2467207358280
6 1779938570782440
7 -1336872265001920320
8 1034337566576031632100
9 -818707881037376263396710
10 659829780447854309255690280
11 -539628866179308154664183513160
12 446708428717281359928910138018680
13 -373580804664955058627213489276760840

List of values

[1, -30, 10980, -5822040, 3623245710, -2467207358280, 1779938570782440, -1336872265001920320, 1034337566576031632100, -818707881037376263396710, 659829780447854309255690280, -539628866179308154664183513160, 446708428717281359928910138018680, -373580804664955058627213489276760840]

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

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