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.

A020956 a(n) = Sum_{k>=1} floor(tau^(n-k)) where tau is A001622.

Table of values

n a(n)
1 1
2 2
3 4
4 8
5 14
6 25
7 42
8 71
9 117
10 193
11 315
12 514
13 835
14 1356
15 2198
16 3562
17 5768
18 9339
19 15116
20 24465
21 39591
22 64067
23 103669
24 167748
25 271429
26 439190
27 710632
28 1149836
29 1860482
30 3010333
31 4870830
32 7881179
33 12752025
34 20633221
35 33385263
36 54018502
37 87403783
38 141422304

List of values

[1, 2, 4, 8, 14, 25, 42, 71, 117, 193, 315, 514, 835, 1356, 2198, 3562, 5768, 9339, 15116, 24465, 39591, 64067, 103669, 167748, 271429, 439190, 710632, 1149836, 1860482, 3010333, 4870830, 7881179, 12752025, 20633221, 33385263, 54018502, 87403783, 141422304]