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.

A208743 Number of subsets of the set {1,2,...,n} which do not contain two elements whose difference is 6.

Table of values

n a(n)
1 2
2 4
3 8
4 16
5 32
6 64
7 96
8 144
9 216
10 324
11 486
12 729
13 1215
14 2025
15 3375
16 5625
17 9375
18 15625
19 25000
20 40000
21 64000
22 102400
23 163840
24 262144
25 425984
26 692224
27 1124864
28 1827904
29 2970344
30 4826809
31 7797153
32 12595401
33 20346417
34 32867289
35 53093313
36 85766121
37 138859434

List of values

[2, 4, 8, 16, 32, 64, 96, 144, 216, 324, 486, 729, 1215, 2025, 3375, 5625, 9375, 15625, 25000, 40000, 64000, 102400, 163840, 262144, 425984, 692224, 1124864, 1827904, 2970344, 4826809, 7797153, 12595401, 20346417, 32867289, 53093313, 85766121, 138859434]