login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A289582 as a simple table

na(n)
01
111
2101
31111
411011
5111111
61000111
711111111
8101001111
91111111111
1010110011111
11111111111111
121000100111111
1311111111111111
14100011001111111
151111011111111111
1611100000011111111
17111111111111111111
181010001100111111111
1911111101111111111111

[1,11,101,1111,11011,111111,1000111,11111111,
 101001111,1111111111,10110011111,111111111111,
 1000100111111,11111111111111,100011001111111,
 1111011111111111,11100000011111111,
 111111111111111111,1010001100111111111,
 11111101111111111111]