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Product_{k=1..n} (k^k)!.
1

%I #7 Jun 17 2018 15:33:31

%S 1,24,261332866810040451858432000000

%N Product_{k=1..n} (k^k)!.

%C The next term (a(4)) has 537 digits.

%H Vaclav Kotesovec, <a href="/A255403/b255403.txt">Table of n, a(n) for n = 1..4</a>

%t Table[Product[(k^k)!, {k, 1, n}], {n, 1, 4}]

%Y Cf. A000178, A255322, A255358, A255359, A255360.

%Y Cf. A002109, A051675, A255321, A255323, A255344.

%Y Cf. A000142, A255268, A255269.

%K nonn

%O 1,2

%A _Vaclav Kotesovec_, Feb 22 2015