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A220079
7^(n!).
1
7, 7, 49, 117649, 191581231380566414401
OFFSET
0,1
LINKS
FORMULA
a(n) = a(n - 1)^n, a(0) = 2.
a(n) = A000420(A000142(n)).
MATHEMATICA
Table[7^(n!), {n, 0, 7}]
PROG
(Magma) [7^Factorial(n): n in [0..7]];
(Maxima) makelist(7^(n!), n, 0, 5); /* Martin Ettl, Dec 27 2012 */
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Dec 16 2012
STATUS
approved