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A074181 Smallest power of n >= n!. 7

%I #19 Aug 10 2022 20:00:58

%S 1,2,9,64,125,1296,16807,262144,531441,10000000,214358881,5159780352,

%T 10604499373,289254654976,8649755859375,281474976710656,

%U 582622237229761,20822964865671168,799006685782884121

%N Smallest power of n >= n!.

%H Danny Rorabaugh, <a href="/A074181/b074181.txt">Table of n, a(n) for n = 1..447</a>

%F From _Danny Rorabaugh_, Apr 14 2015: (Start)

%F a(n) = n^A074184(n).

%F a(n) = n^ceiling(log_n(n!)) for n>1.

%F a(n) = n*A074182(n) = n^A060151(n) = n^(1 + A039960(n)) = n! + A111683(n) for n>2.

%F (End)

%t Join[{1},Table[n^Ceiling[Log[n,n!]],{n,2,20}]] (* _Harvey P. Dale_, Aug 10 2022 *)

%o (Sage) [1]+[n^ceil(log(factorial(n))/log(n)) for n in range(2,20)] # _Danny Rorabaugh_, Apr 14 2015

%o (PARI) a(n)=if(n>2,n^(logint(n!,n)+1),n) \\ _Charles R Greathouse IV_, Oct 11 2015

%Y Cf. A074182.

%K nonn,easy

%O 1,2

%A _Amarnath Murthy_, Aug 31 2002

%E More terms from _Jason Earls_, Sep 02 2002

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Last modified August 24 01:02 EDT 2024. Contains 375396 sequences. (Running on oeis4.)