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.

A288230 Coefficients of 1/(Sum_{k>=0} [(k+1)*r]*(-x)^k), where r = sqrt(5/2) and [ ] = floor.

Table of values

n a(n)
0 1
1 3
2 5
3 9
4 18
5 36
6 71
7 138
8 268
9 522
10 1017
11 1980
12 3853
13 7498
14 14594
15 28406
16 55287
17 107604
18 209428
19 407608
20 793325
21 1544042
22 3005154
23 5848902
24 11383662
25 22155913
26 43121842
27 83927627
28 163347533
29 317921733
30 618768013
31 1204302235
32 2343921860
33 4561952576

List of values

[1, 3, 5, 9, 18, 36, 71, 138, 268, 522, 1017, 1980, 3853, 7498, 14594, 28406, 55287, 107604, 209428, 407608, 793325, 1544042, 3005154, 5848902, 11383662, 22155913, 43121842, 83927627, 163347533, 317921733, 618768013, 1204302235, 2343921860, 4561952576]