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.

A171069 G.f. -x*(x-1)*(1+x)/(1-x-12*x^2-x^3+x^4).

Table of values

n a(n)
0 0
1 1
2 1
3 12
4 25
5 169
6 480
7 2521
8 8425
9 38988
10 142129
11 615889
12 2352000
13 9845809
14 38543569
15 158429388
16 628446025
17 2558296441
18 10219534560
19 41389108489
20 165953373625
21 670283913612
22 2692893971041
23 10860865199521
24 43679923392000

List of values

[0, 1, 1, 12, 25, 169, 480, 2521, 8425, 38988, 142129, 615889, 2352000, 9845809, 38543569, 158429388, 628446025, 2558296441, 10219534560, 41389108489, 165953373625, 670283913612, 2692893971041, 10860865199521, 43679923392000]