Numbers m such that m^2 is a concatenation of two consecutive decreasing numbers.
A054216
Numbers m such that m^2 is a concatenation of two consecutive decreasing numbers.
Terms
- a(0) =91a(1) =9079a(2) =9901a(3) =733674a(4) =999001a(5) =88225295a(6) =99990001a(7) =8900869208a(8) =9296908812a(9) =9604060397a(10) =9999900001a(11) =326666333267a(12) =673333666734a(13) =700730927008a(14) =972603739727a(15) =999999000001
External references
- oeis: A054216