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.

A111875 Concatenate the consecutive increasing numbers starting with prime(n) and ending with prime(n+1).

Table of values

n a(n)
1 23
2 345
3 567
4 7891011
5 111213
6 1314151617
7 171819
8 1920212223
9 23242526272829
10 293031
11 31323334353637
12 3738394041
13 414243
14 4344454647
15 47484950515253
16 53545556575859
17 596061
18 61626364656667
19 6768697071
20 717273
21 73747576777879

List of values

[23, 345, 567, 7891011, 111213, 1314151617, 171819, 1920212223, 23242526272829, 293031, 31323334353637, 3738394041, 414243, 4344454647, 47484950515253, 53545556575859, 596061, 61626364656667, 6768697071, 717273, 73747576777879]

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

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