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.

A261327 a(n) = (n^2 + 4) / 4^((n + 1) mod 2).

Table of values

n a(n)
0 1
1 5
2 2
3 13
4 5
5 29
6 10
7 53
8 17
9 85
10 26
11 125
12 37
13 173
14 50
15 229
16 65
17 293
18 82
19 365
20 101
21 445
22 122
23 533
24 145
25 629
26 170
27 733
28 197
29 845
30 226
31 965
32 257
33 1093
34 290
35 1229
36 325
37 1373
38 362
39 1525
40 401
41 1685
42 442
43 1853
44 485
45 2029
46 530
47 2213
48 577
49 2405
50 626
51 2605
52 677

List of values

[1, 5, 2, 13, 5, 29, 10, 53, 17, 85, 26, 125, 37, 173, 50, 229, 65, 293, 82, 365, 101, 445, 122, 533, 145, 629, 170, 733, 197, 845, 226, 965, 257, 1093, 290, 1229, 325, 1373, 362, 1525, 401, 1685, 442, 1853, 485, 2029, 530, 2213, 577, 2405, 626, 2605, 677]