A060250 - OEIS

A060250

The smallest k such that k! + 1 has exactly n prime factors (with multiplicity).

1, 4, 9, 23, 16, 18, 40, 89

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OFFSET

1,2

LINKS

MATHEMATICA

With[{f=PrimeOmega[Range[90]!+1]}, Table[Position[f, _?(#==n&), 1, 1], {n, 8}]]//Flatten (* Harvey P. Dale, Feb 11 2018 *)

PROG

(PARI) a(n)=my(k); while(bigomega(k++!+1)-n, ); k \\ Charles R Greathouse IV, Apr 25 2012

CROSSREFS

KEYWORD

nonn,more

AUTHOR

EXTENSIONS

a(8) from Arkadiusz Wesolowski, Apr 25 2012

Title clarified by Sean A. Irvine, Nov 02 2022

STATUS

approved