%I
%S 1,4,9,23,16,18,40,89
%N The smallest k! + 1 with exactly n prime factors (with multiplicity).
%t With[{f=PrimeOmega[Range[90]!+1]},Table[Position[f,_?(#==n&),1,1],{n,8}]]//Flatten (* _Harvey P. Dale_, Feb 11 2018 *)
%o (PARI) a(n)=my(k);while(bigomega(k++!+1)n,);k \\ _Charles R Greathouse IV_, Apr 25 2012
%Y Cf. A054990.
%K nonn
%O 1,2
%A _Robert G. Wilson v_, Mar 23 2001
%E a(8) from Arkadiusz Wesolowski, Apr 25 2012
