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.

A077515 Smallest n-digit number beginning with n and having n divisors, or 0 if no such number exists.

Table of values

n a(n)
1 1
2 23
3 361
4 4006
5 0
6 600004
7 0
8 80000001
9 900060001
10 1000000016
11 0
12 120000000020
13 0
14 14000000002112
15 150000300946521
16 1600000000000005
17 0
18 180000000000000639
19 0
20 20000000000000000048
21 210000002255164326976
22 2200000000000000037888
23 0
24 240000000000000000000004

List of values

[1, 23, 361, 4006, 0, 600004, 0, 80000001, 900060001, 1000000016, 0, 120000000020, 0, 14000000002112, 150000300946521, 1600000000000005, 0, 180000000000000639, 0, 20000000000000000048, 210000002255164326976, 2200000000000000037888, 0, 240000000000000000000004]

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

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