A016066 a(n) = round(e^(e^n)).

3, 15, 1618, 528491311, 514843556263457213182266, 28511235679461510605581038657982805983853648817939444953417128837

Offset: 0

Author

Robert G. Wilson v

Keywords

• nonn
• easy

Comments

a(6) is a 176-digit number. - Jon E. Schoenfield, Sep 04 2017

Examples

			a(0) = round(e) = round(2.718281828459...) = 3.
a(1) = round(e^e) = round(15.154262241479264...) = 15.
a(2) = round(e^(e^2)) = round(1618.1779919126535...) = 1618.
		

Crossrefs

Cf. A001113, A073226, A096232, A096404.

Programs

Mathematica

Table[Round[E^(E^n)], {n, 0, 5}] (* Harvey P. Dale, Oct 21 2016 *)

Extensions

Corrected by N. J. A. Sloane, Aug 16 2004