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.

A253281 Triangular array read by rows: T(h,k) = number of steps from (h,k) to (0,0), where allowable steps are as follows: (x,y) -> (x-r, y) if r > 0, and (x,y) -> (y, r/3) otherwise, where r = x mod 3.

Table of values

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

List of values

[0, 1, 2, 1, 3, 2, 3, 3, 3, 4, 4, 4, 3, 5, 5, 4, 5, 4, 5, 6, 5, 3, 5, 5, 5, 6, 6, 4, 4, 4, 5, 6, 6, 6, 5, 5, 4, 5, 4, 6, 7, 6, 5, 6, 5, 5, 5, 5, 5, 7, 7, 5, 6, 6, 6, 6, 6, 5, 6, 6, 7, 6, 6, 6, 7, 7, 6, 7, 6, 6, 7, 6, 6, 7, 6, 7, 8, 7, 6, 7, 7, 6, 7, 7, 5, 7]