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.

A273317 Irregular table read by rows: T(0,0) = 2 and T(n,2k) = T(n-1,k)+1, T(n,2k+1) = T(n-1,k)*(T(n-1,k)+1) for 0 <= k < 2^(n-1).

Table of values

n a(n)
0 2
1 3
2 6
3 4
4 12
5 7
6 42
7 5
8 20
9 13
10 156
11 8
12 56
13 43
14 1806
15 6
16 30
17 21
18 420
19 14
20 182
21 157
22 24492
23 9
24 72
25 57
26 3192
27 44
28 1892
29 1807
30 3263442
31 7
32 42
33 31
34 930
35 22
36 462
37 421
38 176820
39 15
40 210
41 183
42 33306
43 158
44 24806
45 24493
46 599882556
47 10
48 90
49 73
50 5256
51 58
52 3306
53 3193
54 10192056

List of values

[2, 3, 6, 4, 12, 7, 42, 5, 20, 13, 156, 8, 56, 43, 1806, 6, 30, 21, 420, 14, 182, 157, 24492, 9, 72, 57, 3192, 44, 1892, 1807, 3263442, 7, 42, 31, 930, 22, 462, 421, 176820, 15, 210, 183, 33306, 158, 24806, 24493, 599882556, 10, 90, 73, 5256, 58, 3306, 3193, 10192056]