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A090661 Numbers n such that prevprime(n!) - n*prevprime((n-1)!) < 0. 1

%I

%S 5,8,13,15,31,34,39,95,167,325,380,470,547

%N Numbers n such that prevprime(n!) - n*prevprime((n-1)!) < 0.

%t PrevPrim[ n_ ] := Block[ {k = n - 1}, While[ !PrimeQ[ k ], k-- ]; k ]; Select[ Range[ 275 ], PrevPrim[ #! ] - #*PrevPrim[ (# - 1)! ] < 0 & ] (* _Robert G. Wilson v_ *)

%Y Cf. A090660.

%K nonn

%O 1,1

%A Mohammed Bouayoun (bouyao(AT)wanadoo.fr), Dec 15 2003

%E More terms from _Robert G. Wilson v_, Dec 20 2003

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Last modified April 5 03:58 EDT 2020. Contains 333238 sequences. (Running on oeis4.)