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.

A375376 Square array read by antidiagonals: Let n = Sum_{i=1..m} 2^e_i be the binary expansion of n, let S be the set {e_i+2; 1 <= i <= m}, and let X be the sequence of power towers built of numbers in S, sorted first by their height and then colexicographically. The n-th row of the array gives the permutation of indices which reorders X by magnitude. In case of ties, keep the colexicographic order.

Table of values

n a(n)
1 1
2 2
3 1
4 3
5 2
6 1
7 4
8 3
9 2
10 1
11 5
12 4
13 3
14 2
15 1
16 6
17 5
18 5
19 3
20 2
21 1
22 7
23 6
24 4
25 4
26 3
27 2
28 1
29 8
30 7
31 7
32 5
33 4
34 3
35 2
36 1
37 9
38 8
39 6
40 6
41 5
42 4
43 3
44 2
45 1
46 10
47 9
48 8
49 7
50 7
51 5
52 4
53 3
54 3
55 1
56 11
57 10
58 11
59 8
60 6
61 6
62 7
63 4
64 2
65 2
66 1
67 12
68 11
69 9
70 9
71 8
72 7
73 5
74 5
75 7
76 3
77 2
78 1
79 13
80 12
81 12
82 10
83 9
84 8
85 6
86 6
87 4
88 4
89 4
90 2
91 1

List of values

[1, 2, 1, 3, 2, 1, 4, 3, 2, 1, 5, 4, 3, 2, 1, 6, 5, 5, 3, 2, 1, 7, 6, 4, 4, 3, 2, 1, 8, 7, 7, 5, 4, 3, 2, 1, 9, 8, 6, 6, 5, 4, 3, 2, 1, 10, 9, 8, 7, 7, 5, 4, 3, 3, 1, 11, 10, 11, 8, 6, 6, 7, 4, 2, 2, 1, 12, 11, 9, 9, 8, 7, 5, 5, 7, 3, 2, 1, 13, 12, 12, 10, 9, 8, 6, 6, 4, 4, 4, 2, 1]