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.

A283870 For all n, the set consisting of the terms {a(1), a(2), a(3), ..., a(n)} has an odd number or 0 of digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 11
11 22
12 33
13 44
14 55
15 66
16 77
17 88
18 99
19 101
20 1001
21 1010
22 1100
23 1111
24 1122
25 1133
26 1144
27 1155
28 1166
29 1177
30 1188
31 1199
32 1212
33 1221
34 1313
35 1331
36 1414
37 1441
38 1515
39 1551
40 1616
41 1661
42 1717
43 1771
44 1818
45 1881
46 1919
47 1991
48 2002
49 2020
50 2112
51 2121
52 2200
53 2211
54 2222
55 2233
56 2244
57 2255
58 2266
59 2277
60 2288

List of values

[1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 1001, 1010, 1100, 1111, 1122, 1133, 1144, 1155, 1166, 1177, 1188, 1199, 1212, 1221, 1313, 1331, 1414, 1441, 1515, 1551, 1616, 1661, 1717, 1771, 1818, 1881, 1919, 1991, 2002, 2020, 2112, 2121, 2200, 2211, 2222, 2233, 2244, 2255, 2266, 2277, 2288]