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”).

A279874 as a simple table

na(n)
01
110
2101
31110
41
5111010
610101
710111110
8100000001
91111111010
1010101
11111110111110
121
1311111111111010
1410101
151111111110111110
161
17111111111111111010
1810101
1911111111111110111110
201
211111111111111111111010
2210101
23111111111111111110111110
241

[1,10,101,1110,1,111010,10101,10111110,100000001,
 1111111010,10101,111110111110,1,11111111111010,
 10101,1111111110111110,1,111111111111111010,10101,
 11111111111110111110,1,1111111111111111111010,
 10101,111111111111111110111110,1]