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.

A266577 Square array read by descending antidiagonals: T(n,k) = ((2^(n+1) + 1)^(k-1) + 1)/2.

Table of values

n a(n)
1 1
2 3
3 1
4 13
5 5
6 1
7 63
8 41
9 9
10 1
11 313
12 365
13 145
14 17
15 1
16 1563
17 3281
18 2457
19 545
20 33
21 1
22 7813
23 29525
24 41761
25 17969
26 2113
27 65
28 1
29 39063
30 265721
31 709929
32 592961
33 137313
34 8321
35 129
36 1
37 195313
38 2391485
39 12068785
40 19567697
41 8925313
42 1073345
43 33025
44 257
45 1
46 976563
47 21523361
48 205169337
49 645733985
50 580145313
51 138461441
52 8487297
53 131585
54 513
55 1

List of values

[1, 3, 1, 13, 5, 1, 63, 41, 9, 1, 313, 365, 145, 17, 1, 1563, 3281, 2457, 545, 33, 1, 7813, 29525, 41761, 17969, 2113, 65, 1, 39063, 265721, 709929, 592961, 137313, 8321, 129, 1, 195313, 2391485, 12068785, 19567697, 8925313, 1073345, 33025, 257, 1, 976563, 21523361, 205169337, 645733985, 580145313, 138461441, 8487297, 131585, 513, 1]