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.

A192923 Coefficient of x in the reduction by (x^2->x+1) of the polynomial p(n,x) defined below at Comments.

Table of values

n a(n)
0 0
1 1
2 2
3 4
4 9
5 19
6 42
7 91
8 200
9 437
10 959
11 2101
12 4609
13 10106
14 22168
15 48620
16 106649
17 233928
18 513126
19 1125541
20 2468901
21 5415578
22 11879209
23 26057330
24 57157443
25 125376341
26 275016369
27 603255761

List of values

[0, 1, 2, 4, 9, 19, 42, 91, 200, 437, 959, 2101, 4609, 10106, 22168, 48620, 106649, 233928, 513126, 1125541, 2468901, 5415578, 11879209, 26057330, 57157443, 125376341, 275016369, 603255761]