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.

A211206 Least number which reaches n under the operation introduced in A100787: first differences are the digits of the sequence.

Table of values

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

List of values

[1, 1, 3, 1, 5, 3, 7, 1, 9, 5, 5, 3, 3, 5, 3, 1, 1, 5, 3, 3, 11, 5, 1, 1, 3, 3, 5, 5, 19, 13, 1, 3, 1, 5, 7, 1, 7, 1, 7, 5, 5, 1, 13, 3, 1, 1, 11, 9, 1, 5, 3, 1, 3, 11, 1, 9, 20, 13, 3, 7, 1, 3, 5, 1, 5, 9, 3, 5, 9, 3, 11, 1, 7, 3, 11, 1, 5, 1]