a(n)^2 is smallest square number starting with a string of n 5's.
A034986
a(n)^2 is smallest square number starting with a string of n 5's.
Terms
- a(0) =23a(1) =235a(2) =745a(3) =2357a(4) =235702a(5) =745356a(6) =745356a(7) =23570226a(8) =2357022603a(9) =2357022604a(10) =7453559925a(11) =7453559925
External references
- oeis: A034986