%I #14 Sep 08 2022 08:46:04
%S 7,7,49,117649,191581231380566414401
%N 7^(n!).
%H Vincenzo Librandi, <a href="/A220079/b220079.txt">Table of n, a(n) for n = 0..6</a>
%F a(n) = a(n - 1)^n, a(0) = 2.
%F a(n) = A000420(A000142(n)).
%t Table[7^(n!), {n, 0, 7}]
%o (Magma) [7^Factorial(n): n in [0..7]];
%o (Maxima) makelist(7^(n!),n,0,5); /* _Martin Ettl_, Dec 27 2012 */
%Y Cf. A000142, A000420, A050923, A100731, A220078.
%K nonn
%O 0,1
%A _Vincenzo Librandi_, Dec 16 2012
|