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.

A179095 Rectified 5-cell numbers: the coefficient of x^{2n-2} in (1+x+x^2+ ... + x^{n-1})^5.

Table of values

n a(n)
0 0
1 1
2 10
3 45
4 135
5 320
6 651
7 1190
8 2010
9 3195
10 4840
11 7051
12 9945
13 13650
14 18305
15 24060
16 31076
17 39525
18 49590
19 61465
20 75355
21 91476
22 110055
23 131330
24 155550
25 182975
26 213876
27 248535
28 287245
29 330310
30 378045
31 430776
32 488840
33 552585
34 622370
35 698565
36 781551
37 871720
38 969475

List of values

[0, 1, 10, 45, 135, 320, 651, 1190, 2010, 3195, 4840, 7051, 9945, 13650, 18305, 24060, 31076, 39525, 49590, 61465, 75355, 91476, 110055, 131330, 155550, 182975, 213876, 248535, 287245, 330310, 378045, 430776, 488840, 552585, 622370, 698565, 781551, 871720, 969475]