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.

A240959 Smallest number that contains the first n primes as substrings. Substrings can go from left to right or right to left.

Table of values

n a(n)
1 2
2 23
3 235
4 2357
5 112357
6 113257
7 231175
8 11325719
9 11325719
10 11329175
11 11329175
12 113291735
13 3117329145
14 11329143715
15 411329173475
16 3114329173547
17 31143291735947
18 1132914347167359
19 1132914347167359
20 1132914347167359
21 1132914347167359
22 11329143471673597

List of values

[2, 23, 235, 2357, 112357, 113257, 231175, 11325719, 11325719, 11329175, 11329175, 113291735, 3117329145, 11329143715, 411329173475, 3114329173547, 31143291735947, 1132914347167359, 1132914347167359, 1132914347167359, 1132914347167359, 11329143471673597]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.