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.

A282079 Number of n-element subsets of [n+2] having an even sum.

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 9
5 9
6 12
7 20
8 25
9 25
10 30
11 42
12 49
13 49
14 56
15 72
16 81
17 81
18 90
19 110
20 121
21 121
22 132
23 156
24 169
25 169
26 182
27 210
28 225
29 225
30 240
31 272
32 289
33 289
34 306
35 342
36 361
37 361
38 380
39 420
40 441
41 441
42 462
43 506
44 529
45 529
46 552
47 600
48 625
49 625
50 650
51 702
52 729
53 729
54 756
55 812
56 841

List of values

[1, 1, 2, 6, 9, 9, 12, 20, 25, 25, 30, 42, 49, 49, 56, 72, 81, 81, 90, 110, 121, 121, 132, 156, 169, 169, 182, 210, 225, 225, 240, 272, 289, 289, 306, 342, 361, 361, 380, 420, 441, 441, 462, 506, 529, 529, 552, 600, 625, 625, 650, 702, 729, 729, 756, 812, 841]