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.

A260596 Array A read by upward antidiagonals in which the entry A(n,k) in row n and column k is defined by A(n,k) = (8 + (3*floor((4*n + 1)/3) - 2)*4^k)/12, n,k >= 1.

Table of values

n a(n)
1 1
2 3
3 2
4 4
5 10
6 6
7 5
8 14
9 38
10 22
11 7
12 18
13 54
14 150
15 86
16 8
17 26
18 70
19 214
20 598
21 342
22 9
23 30
24 102
25 278
26 854
27 2390
28 1366
29 11
30 34
31 118
32 406
33 1110
34 3414
35 9558
36 5462
37 12
38 42
39 134
40 470
41 1622
42 4438
43 13654
44 38230
45 21846
46 13
47 46
48 166
49 534
50 1878
51 6486
52 17750
53 54614
54 152918
55 87382

List of values

[1, 3, 2, 4, 10, 6, 5, 14, 38, 22, 7, 18, 54, 150, 86, 8, 26, 70, 214, 598, 342, 9, 30, 102, 278, 854, 2390, 1366, 11, 34, 118, 406, 1110, 3414, 9558, 5462, 12, 42, 134, 470, 1622, 4438, 13654, 38230, 21846, 13, 46, 166, 534, 1878, 6486, 17750, 54614, 152918, 87382]