A089210 - OEIS

%I #14 Sep 28 2023 16:15:17

%S 1,4,19683,340282366920938463463374607431768211456

%N a(n) = n^(n^(n-1)).

%e 1^(1^0), 2^(2^1), 3^(3^2), 4^(4^3), a(5) = 5^(5^4) = 5^625 =

%e 71821208748307350806616247734800247443646340206560432071396707807743664171107442\

%e 30376725189970180627417964852836169339590849360778907259051520537600521703851886\

%e 43433579743241720259632199259695945742908504868334649410427176109294374402530861\

%e 27413158881119110878565254870714807127305501250316534243564700489124592870454956\

%e 41072957730169031770880096063325579268434790130162440139348161755465331089910013\

%e 8176009977541980333626270294189453125.

%o (PARI) g(n) = for(x=1,n,print1(x^x^(x-1)","))

%K nonn

%O 1,2

%A _Cino Hilliard_, Dec 09 2003

%E Edited by _N. J. A. Sloane_, Nov 09 2007