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.

A382985 Coefficient of x^4 in expansion of (x+1) * (x+4) * ... * (x+3*n-2).

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 1
5 35
6 1005
7 28700
8 859369
9 27458613
10 941164860
11 34617398640
12 1364003226036
13 57425577775852
14 2575788307560104
15 122732603903789880
16 6194752323883374224
17 330320189407442698000
18 18560921582024101872576
19 1096473082032417593216832

List of values

[0, 0, 0, 0, 1, 35, 1005, 28700, 859369, 27458613, 941164860, 34617398640, 1364003226036, 57425577775852, 2575788307560104, 122732603903789880, 6194752323883374224, 330320189407442698000, 18560921582024101872576, 1096473082032417593216832]

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

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