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.

A192382 Coefficient of x in the reduction by x^2 -> x+2 of the polynomial p(n,x) defined below in Comments.

Table of values

n a(n)
1 0
2 2
3 4
4 24
5 80
6 352
7 1344
8 5504
9 21760
10 87552
11 349184
12 1398784
13 5591040
14 22372352
15 89473024
16 357924864
17 1431633920
18 5726666752
19 22906404864
20 91626143744
21 366503526400
22 1466016202752
23 5864060616704
24 23456250855424
25 93824986644480

List of values

[0, 2, 4, 24, 80, 352, 1344, 5504, 21760, 87552, 349184, 1398784, 5591040, 22372352, 89473024, 357924864, 1431633920, 5726666752, 22906404864, 91626143744, 366503526400, 1466016202752, 5864060616704, 23456250855424, 93824986644480]