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.

A127542 Number of subsets of {1,2,3,...,n} whose sum is prime.

Table of values

n a(n)
1 0
2 2
3 4
4 7
5 12
6 22
7 42
8 76
9 139
10 267
11 516
12 999
13 1951
14 3824
15 7486
16 14681
17 28797
18 56191
19 108921
20 210746
21 410016
22 804971
23 1591352
24 3153835
25 6249154
26 12380967
27 24553237
28 48731373
29 96622022
30 191012244
31 376293782
32 739671592
33 1454332766
34 2867413428
35 5678310305

List of values

[0, 2, 4, 7, 12, 22, 42, 76, 139, 267, 516, 999, 1951, 3824, 7486, 14681, 28797, 56191, 108921, 210746, 410016, 804971, 1591352, 3153835, 6249154, 12380967, 24553237, 48731373, 96622022, 191012244, 376293782, 739671592, 1454332766, 2867413428, 5678310305]