A081701 - OEIS

%I #2 May 11 2007 03:00:00

%S 2,12,1280,326592,110000000000,115909305827328,313594649253062377472,

%T 747581753430634213933056,7852841179377049820122874642432,

%U 961220170284347871014609119347573568569344

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

%C The second, third and fourth terms a(n), n=2,3,4 are dimensions of certain Nichols algebras (quantum symmetric algebras) for which the generating space has dimension prime(n).

%e a(2) = 3 * 2^2 = 12 because prime(2) = 3.

%p for n from 1 to 10 do ithprime(n) * (ithprime(n)-1)^(ithprime(n)-1) od;

%Y Cf. A000040.

%K nonn

%O 1,1

%A Matias Grana [Mat'{i}as Gra~{n}a] (matiasg(AT)dm.uba.ar), Apr 02 2003