A241974 a(n) is the limit of the sequence given by A241083^[i](n), where f^[i] means iterate f i times, or 0 if the sequence diverges.

1, 2, 3, 4, 30, 6, 42, 8, 9, 30

Offset: 1

Author

J. Lowell, May 03 2014

Keywords

• nonn
• hard

Comments

Either a(11) = 0 or a(11) > 10^(1310).

Examples

			a(5) = 30 because A241083(5) = 10, A241083(10) = 30, and A241083(30) = 30.
		

Crossrefs

Cf. A241083, A179204.

Programs

Mathematica

a[n_] := FixedPoint[LCM[#, Floor[Sqrt[#]]] &, n]; Array[a, 10] (* Amiram Eldar, Jul 26 2025 *)