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.

A300062 a(1) = 1, a(n) = the smallest integer > a(n-1) such that Sum_{k=1..n} a(k) written in decimal contains decimal n as a substring.

Table of values

n a(n)
1 1
2 11
3 18
4 19
5 26
6 31
7 41
8 42
9 50
10 71
11 101
12 201
13 301
14 401
15 501
16 601
17 701
18 801
19 901
20 1001
21 1101
22 1201
23 1301
24 1401
25 1426
26 1476
27 1501
28 1601
29 1701
30 1771
31 1831
32 1901
33 2001
34 2101
35 2201
36 2301
37 2401
38 2501
39 2601
40 2701
41 2801
42 2901
43 3001
44 3101
45 3201
46 3301
47 3324
48 3378
49 3401

List of values

[1, 11, 18, 19, 26, 31, 41, 42, 50, 71, 101, 201, 301, 401, 501, 601, 701, 801, 901, 1001, 1101, 1201, 1301, 1401, 1426, 1476, 1501, 1601, 1701, 1771, 1831, 1901, 2001, 2101, 2201, 2301, 2401, 2501, 2601, 2701, 2801, 2901, 3001, 3101, 3201, 3301, 3324, 3378, 3401]