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.

A345228 Square array T(m, n), read by ascending antidiagonals. Let f(k) = k/2 if k is even, otherwise ((2*n+1)*k + 2*T(m, n) + 1)/2, T(m, n) is the smallest integer greater than -1, where m = f^j(m) for j > 0 exists. f^j(m) means the j-th iterate of f(m).

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 1
6 0
7 0
8 0
9 1
10 0
11 0
12 0
13 1
14 2
15 0
16 3
17 0
18 0
19 2
20 2
21 0
22 2
23 3
24 1
25 0
26 2
27 3
28 0
29 1
30 2
31 10
32 0
33 2
34 1
35 3
36 0
37 0
38 1
39 7
40 3
41 2
42 1
43 3
44 4
45 0
46 7
47 0
48 4
49 2
50 17
51 1
52 3
53 5
54 4
55 0
56 6
57 7
58 1
59 1
60 4
61 10
62 3
63 0
64 4
65 5
66 0
67 5
68 6
69 22
70 0
71 7
72 7
73 24
74 4
75 1
76 2
77 5
78 0
79 4
80 5
81 19
82 7
83 2
84 4
85 17
86 3
87 4
88 2

List of values

[0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 2, 0, 3, 0, 0, 2, 2, 0, 2, 3, 1, 0, 2, 3, 0, 1, 2, 10, 0, 2, 1, 3, 0, 0, 1, 7, 3, 2, 1, 3, 4, 0, 7, 0, 4, 2, 17, 1, 3, 5, 4, 0, 6, 7, 1, 1, 4, 10, 3, 0, 4, 5, 0, 5, 6, 22, 0, 7, 7, 24, 4, 1, 2, 5, 0, 4, 5, 19, 7, 2, 4, 17, 3, 4, 2]