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.

A238206 Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(0,k) is A007494(k) and T(n,k) = 3*T(n-1,k) + 1 for n>0.

Table of values

n a(n)
0 0
1 2
2 1
3 3
4 7
5 4
6 5
7 10
8 22
9 13
10 6
11 16
12 31
13 67
14 40
15 8
16 19
17 49
18 94
19 202
20 121
21 9
22 25
23 58
24 148
25 283
26 607
27 364
28 11
29 28
30 76
31 175
32 445
33 850
34 1822
35 1093
36 12
37 34
38 85
39 229
40 526
41 1336
42 2551
43 5467
44 3280
45 14
46 37
47 103
48 256
49 688
50 1579
51 4009
52 7654
53 16402
54 9841
55 15
56 43
57 112
58 310

List of values

[0, 2, 1, 3, 7, 4, 5, 10, 22, 13, 6, 16, 31, 67, 40, 8, 19, 49, 94, 202, 121, 9, 25, 58, 148, 283, 607, 364, 11, 28, 76, 175, 445, 850, 1822, 1093, 12, 34, 85, 229, 526, 1336, 2551, 5467, 3280, 14, 37, 103, 256, 688, 1579, 4009, 7654, 16402, 9841, 15, 43, 112, 310]