a(1) = 25; for n > 1, a(n) is the smallest integer > 0 such that the concatenation a(n)a(n-1)...a(2)a(1) is a square.
A065781
a(1) = 25; for n > 1, a(n) is the smallest integer > 0 such that the concatenation a(n)a(n-1)...a(2)a(1) is a square.
Terms
- a(0) =25a(1) =2a(2) =1a(3) =8a(4) =162a(5) =70771a(6) =164268122
External references
- oeis: A065781