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.

A080850 Number triangle related to a problem of Knuth.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 2
6 1
7 2
8 3
9 3
10 1
11 5
12 5
13 6
14 4
15 1
16 11
17 10
18 11
19 10
20 5
21 1
22 22
23 21
24 21
25 21
26 15
27 6
28 1
29 43
30 43
31 42
32 42
33 36
34 21
35 7
36 1
37 85
38 86
39 85
40 84
41 78
42 57
43 28
44 8
45 1
46 170
47 171
48 171
49 169
50 162
51 135
52 85
53 36
54 9
55 1
56 341
57 341
58 342
59 340
60 331
61 297
62 220
63 121
64 45
65 10
66 1
67 683
68 682
69 683
70 671
71 628
72 517

List of values

[1, 1, 1, 1, 2, 1, 2, 3, 3, 1, 5, 5, 6, 4, 1, 11, 10, 11, 10, 5, 1, 22, 21, 21, 21, 15, 6, 1, 43, 43, 42, 42, 36, 21, 7, 1, 85, 86, 85, 84, 78, 57, 28, 8, 1, 170, 171, 171, 169, 162, 135, 85, 36, 9, 1, 341, 341, 342, 340, 331, 297, 220, 121, 45, 10, 1, 683, 682, 683, 671, 628, 517]