login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A071827 as a simple table

na(n)
11
271
31071
4131071
519131071
62319131071
7282319131071
831282319131071
93231282319131071
10443231282319131071
1149443231282319131071
126849443231282319131071
13706849443231282319131071
1479706849443231282319131071
158279706849443231282319131071
16868279706849443231282319131071

[1,71,1071,131071,19131071,2319131071,
 282319131071,31282319131071,3231282319131071,
 443231282319131071,49443231282319131071,
 6849443231282319131071,706849443231282319131071,
 79706849443231282319131071,
 8279706849443231282319131071,
 868279706849443231282319131071]