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.

A377609 a(n) is the number of iterations of x -> 2*x - 1 until (# composites reached) = (# primes reached), starting with prime(n).

Table of values

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

List of values

[7, 5, 1, 3, 1, 1, 1, 9, 1, 1, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 19, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 3, 1, 1, 1, 13, 7, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1]