login

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

A286673 as a simple table

na(n)
01
111
2100
31111
411000
5111111
61100000
711111111
8100100000
91111111111
1010010000000
11111111111111
121111000000000
1311111111111111
14111100000000000
151111111111111111
1611111111000000000
17111111111111111111
181001100100000000000
1911111111111111111111

[1,11,100,1111,11000,111111,1100000,11111111,
 100100000,1111111111,10010000000,111111111111,
 1111000000000,11111111111111,111100000000000,
 1111111111111111,11111111000000000,
 111111111111111111,1001100100000000000,
 11111111111111111111]