|
%I #7 Apr 17 2022 22:57:21
%S 1,3,19679,340282366920938463463374607431768191773
%N a(n) = (n+1)^((n+1)^n) - n^(n^(n-1)).
%C First differences of A053015. Since a(2) = 3 is prime, a(3) = 19679 is semiprime and a(4) has 6 prime factors. - _Jonathan Vos Post_, Dec 11 2005
%F Equally, 1-0, (2^2)-1, (3^3)^3 - 2^2, ((4^4)^4)^4 - (3^3)^3, ...
%Y Cf. A053015.
%K nonn
%O 1,2
%A _Daniel Kiteck_, Dec 07 2005
|
