a(1) = 2, a(n) = smallest number > a(n-1) such that the concatenation of a(n-1) and a(n) is a square.
A265147
a(1) = 2, a(n) = smallest number > a(n-1) such that the concatenation of a(n-1) and a(n) is a square.
Terms
- a(0) =2a(1) =5a(2) =29a(3) =241a(4) =1809a(5) =6516a(6) =27729a(7) =70281a(8) =191236a(9) =537636a(10) =5052601a(11) =24352064a(12) =50491721a(13) =335176900a(14) =816286736a(15) =1584582656a(16) =5835352241a(17) =31064957504a(18) =299026078001a(19) =368254999225a(20) =916181280225
External references
- oeis: A265147