

A062549


a(n) is the smallest number m such that m! is divisible by the left factorial !n (A003422).


0



1, 2, 4, 5, 17, 11, 23, 2957, 23117, 204557, 2018957, 37313, 296797, 39229, 622561, 1832213, 87616043, 2462521469, 17209100320681, 5207129, 2558906768309, 135954526571, 85412472868721, 3075880875779
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OFFSET

0,2


COMMENTS

Conjecture: a(n) is the largest prime factor of !n for all n > 2.  Sean A. Irvine, Apr 01 2023


LINKS



EXAMPLE

!4 = 1+1+2+6+24 = 34. The smallest value of n such that n! is divisible by 34 is 17!, so a(4)=17


CROSSREFS



KEYWORD

nonn


AUTHOR

Jonathan Ayres (jonathan.ayres(AT)btinternet.com), Nov 22 2001


STATUS

approved



