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.

A377834 a(1) = 0, and for n > 0, if A055932(n) = 2^r(1) * 3^r(2) * ... * prime(k)^r(k) with r(k) > 0 (where prime(k) denotes the k-th prime number), then the run lengths of the binary expansion of a(n) are (r(1), r(2), ..., r(k)).

Table of values

n a(n)
1 0
2 1
3 3
4 2
5 7
6 6
7 15
8 4
9 14
10 5
11 31
12 12
13 30
14 8
15 13
16 63
17 28
18 9
19 62
20 24
21 29
22 127
23 60
24 11
25 16
26 25
27 126
28 10
29 56
30 61
31 255
32 17
33 124
34 27
35 48
36 57
37 254
38 26
39 120
40 19
41 125
42 32
43 511
44 49
45 252
46 59
47 18
48 112
49 121
50 23
51 510
52 33
53 58
54 248
55 51
56 253
57 96
58 1023
59 22
60 113
61 508
62 123
63 50

List of values

[0, 1, 3, 2, 7, 6, 15, 4, 14, 5, 31, 12, 30, 8, 13, 63, 28, 9, 62, 24, 29, 127, 60, 11, 16, 25, 126, 10, 56, 61, 255, 17, 124, 27, 48, 57, 254, 26, 120, 19, 125, 32, 511, 49, 252, 59, 18, 112, 121, 23, 510, 33, 58, 248, 51, 253, 96, 1023, 22, 113, 508, 123, 50]