cp's OEIS Frontend

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.

A383221 Coefficient of x^3 in expansion of (x+2) * (x+5) * ... * (x+3*n-1).

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 26
5 595
6 14155
7 363944
8 10206700
9 312193524
10 10380710220
11 373619597736
12 14490750497432
13 603032132116336
14 26818416624389936
15 1269883590624201344
16 63806666669904903808
17 3391580011320726010880
18 190174443042558311293440
19 11220246602286014617751040

List of values

[0, 0, 0, 1, 26, 595, 14155, 363944, 10206700, 312193524, 10380710220, 373619597736, 14490750497432, 603032132116336, 26818416624389936, 1269883590624201344, 63806666669904903808, 3391580011320726010880, 190174443042558311293440, 11220246602286014617751040]

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

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