a(n) is the smallest positive integer whose square starts with (at least) n identical digits.
A119998
a(n) is the smallest positive integer whose square starts with (at least) n identical digits.
Terms
- a(0) =1a(1) =15a(2) =149a(3) =2357a(4) =10541a(5) =57735a(6) =745356a(7) =1490712a(8) =182574186a(9) =298142397a(10) =298142397a(11) =1490711985a(12) =1490711985
External references
- oeis: A119998