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.

A068031 Number of subsets of {1,2,3,...,n} that sum to 0 mod 10.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 4
6 7
7 13
8 26
9 52
10 104
11 206
12 410
13 820
14 1640
15 3280
16 6556
17 13108
18 26216
19 52432
20 104864
21 209720
22 419432
23 838864
24 1677728
25 3355456
26 6710896
27 13421776
28 26843552
29 53687104
30 107374208
31 214748384
32 429496736
33 858993472
34 1717986944
35 3435973888
36 6871947712

List of values

[1, 1, 1, 1, 2, 4, 7, 13, 26, 52, 104, 206, 410, 820, 1640, 3280, 6556, 13108, 26216, 52432, 104864, 209720, 419432, 838864, 1677728, 3355456, 6710896, 13421776, 26843552, 53687104, 107374208, 214748384, 429496736, 858993472, 1717986944, 3435973888, 6871947712]