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.

A068034 Number of subsets of {1,2,3,...,n} that sum to 0 mod 13.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 2
6 5
7 10
8 20
9 39
10 79
11 158
12 316
13 632
14 1262
15 2522
16 5042
17 10082
18 20164
19 40330
20 80660
21 161320
22 322638
23 645278
24 1290556
25 2581112
26 5162224
27 10324444
28 20648884
29 41297764
30 82595524
31 165191048
32 330382100
33 660764200
34 1321528400

List of values

[1, 1, 1, 1, 1, 2, 5, 10, 20, 39, 79, 158, 316, 632, 1262, 2522, 5042, 10082, 20164, 40330, 80660, 161320, 322638, 645278, 1290556, 2581112, 5162224, 10324444, 20648884, 41297764, 82595524, 165191048, 330382100, 660764200, 1321528400]