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A071361 Largest n-digit prime with strictly decreasing digits. 6

%I #11 May 03 2017 21:54:18

%S 7,97,983,9871,98731,987631,9875321,98765431

%N Largest n-digit prime with strictly decreasing digits.

%C Differs from A007810 (largest prime with n distinct digits) from a(7) on. [Edited by _M. F. Hasler_, May 03 2017]

%o (PARI) A071361(n,u=-vectorv(n,i,10^(n-i)))=forvec(d=vector(n,i,-[9,1]),isprime(d*u)&&return(d*u),2) \\ _M. F. Hasler_, May 03 2017

%Y Cf. A071360, A071362, A071363, A007810.

%K base,fini,full,nonn

%O 1,1

%A _Rick L. Shepherd_, May 21 2002

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)