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.

A050227 Triangle of number of n-tosses having a run of r or more heads for a fair coin with r=1 to n across and n=1, 2, ... down.

Table of values

n a(n)
1 1
2 3
3 1
4 7
5 3
6 1
7 15
8 8
9 3
10 1
11 31
12 19
13 8
14 3
15 1
16 63
17 43
18 20
19 8
20 3
21 1
22 127
23 94
24 47
25 20
26 8
27 3
28 1
29 255
30 201
31 107
32 48
33 20
34 8
35 3
36 1
37 511
38 423
39 238
40 111
41 48
42 20
43 8
44 3
45 1
46 1023
47 880
48 520
49 251
50 112
51 48
52 20
53 8
54 3
55 1
56 2047
57 1815
58 1121
59 558
60 255
61 112
62 48
63 20
64 8
65 3
66 1
67 4095
68 3719

List of values

[1, 3, 1, 7, 3, 1, 15, 8, 3, 1, 31, 19, 8, 3, 1, 63, 43, 20, 8, 3, 1, 127, 94, 47, 20, 8, 3, 1, 255, 201, 107, 48, 20, 8, 3, 1, 511, 423, 238, 111, 48, 20, 8, 3, 1, 1023, 880, 520, 251, 112, 48, 20, 8, 3, 1, 2047, 1815, 1121, 558, 255, 112, 48, 20, 8, 3, 1, 4095, 3719]