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.

A192774 Coefficient of x^2 in the reduction of the n-th Fibonacci polynomial by x^3->x^2+2x+1.

Table of values

n a(n)
1 0
2 0
3 1
4 1
5 6
6 10
7 34
8 74
9 206
10 499
11 1301
12 3264
13 8348
14 21152
15 53828
16 136720
17 347533
18 883157
19 2244462
20 5704094
21 14496130
22 36840606
23 93625542
24 237939591
25 604694601
26 1536764208
27 3905506648
28 9925401280
29 25224262440
30 64104575344

List of values

[0, 0, 1, 1, 6, 10, 34, 74, 206, 499, 1301, 3264, 8348, 21152, 53828, 136720, 347533, 883157, 2244462, 5704094, 14496130, 36840606, 93625542, 237939591, 604694601, 1536764208, 3905506648, 9925401280, 25224262440, 64104575344]