a(n)^2 is the smallest square containing exactly n 1's in its decimal notation.
A048346
a(n)^2 is the smallest square containing exactly n 1's in its decimal notation.
Terms
- a(0) =0a(1) =1a(2) =11a(3) =109a(4) =1054a(5) =3381a(6) =10541a(7) =105414a(8) =414139a(9) =1055041a(10) =10252371a(11) =78173596a(12) =334082481a(13) =1187901979a(14) =1055036071a(15) =33333407869a(16) =105409293239a(17) =718412219489
External references
- oeis: A048346