A062348 - OEIS

%I #13 Jun 29 2018 02:11:27

%S 2,6,24,120,360,5040,40320,362880,1814400,39916800,239500800,

%T 6227020800,43589145600,653837184000,20922789888000,355687428096000,

%U 3201186852864000,121645100408832000,1216451004088320000

%N a(n) = n! / (number of distinct prime divisors of n).

%H Harry J. Smith, <a href="/A062348/b062348.txt">Table of n, a(n) for n = 2..100</a>

%F a(n) = n! / omega(n).

%o (PARI) a(n)=if(n<2, 0, n!/omega(n));

%K easy,nonn

%O 2,1

%A _Jason Earls_, Jul 06 2001