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A060250 The smallest k! + 1 with exactly n prime factors (with multiplicity). 1
1, 4, 9, 23, 16, 18, 40, 89 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..8.

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

Cf. A054990.

Sequence in context: A231338 A257272 A070713 * A138991 A138990 A014543

Adjacent sequences:  A060247 A060248 A060249 * A060251 A060252 A060253

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Mar 23 2001

EXTENSIONS

a(8) from Arkadiusz Wesolowski, Apr 25 2012

STATUS

approved

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Last modified June 15 22:19 EDT 2019. Contains 324145 sequences. (Running on oeis4.)