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.

A383333 Square array read by antidiagonals: T(n,k) is the number of n-tuples of nonnegative integers, not all equal to 0, with a shortest vectorial addition chain of length k; n >= 1, k >= 0.

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 3
6 3
7 3
8 7
9 6
10 4
11 5
12 16
13 16
14 10
15 5
16 9
17 37
18 46
19 30
20 15
21 6
22 15
23 91
24 134
25 101
26 50
27 21
28 7
29 26
30 229
31 411
32 349
33 190
34 77
35 28
36 8
37 44
38 585
39 1319
40 1264
41 751
42 323
43 112
44 36
45 9
46 78
47 1528
48 4368
49 4817
50 3106
51 1426
52 511
53 156
54 45
55 10
56 136
57 4034
58 14925
59 19131
60 13532
61 6586
62 2478
63 766
64 210
65 55
66 11

List of values

[1, 1, 2, 2, 3, 3, 3, 7, 6, 4, 5, 16, 16, 10, 5, 9, 37, 46, 30, 15, 6, 15, 91, 134, 101, 50, 21, 7, 26, 229, 411, 349, 190, 77, 28, 8, 44, 585, 1319, 1264, 751, 323, 112, 36, 9, 78, 1528, 4368, 4817, 3106, 1426, 511, 156, 45, 10, 136, 4034, 14925, 19131, 13532, 6586, 2478, 766, 210, 55, 11]