The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A060250 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A060250

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

#17 by N. J. A. Sloane at Wed Nov 02 07:50:10 EDT 2022

STATUS

proposed

approved

#16 by Michel Marcus at Wed Nov 02 02:53:54 EDT 2022

STATUS

editing

proposed

#15 by Michel Marcus at Wed Nov 02 02:53:50 EDT 2022

KEYWORD

nonn,more,changed

EXTENSIONS

a(8) from _Arkadiusz Wesolowski, _, Apr 25 2012

STATUS

proposed

editing

#14 by Sean A. Irvine at Wed Nov 02 00:32:50 EDT 2022

STATUS

editing

proposed

#13 by Sean A. Irvine at Wed Nov 02 00:32:40 EDT 2022

NAME

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

EXTENSIONS

Title clarified by Sean A. Irvine, Nov 02 2022

STATUS

approved

editing

#12 by Harvey P. Dale at Sun Feb 11 18:18:56 EST 2018

STATUS

editing

approved

#11 by Harvey P. Dale at Sun Feb 11 18:18:52 EST 2018

MATHEMATICA

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

STATUS

approved

editing

#10 by Harvey P. Dale at Sun Feb 11 18:11:39 EST 2018

STATUS

editing

approved

#9 by Harvey P. Dale at Sun Feb 11 18:11:37 EST 2018

MATHEMATICA

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

STATUS

approved

editing

#8 by Charles R Greathouse IV at Sat Jul 14 13:47:20 EDT 2012

STATUS

editing

approved