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%I #9 Apr 30 2023 14:07:07
%S 3,4,5,6,15,21,25,27,28,52,70,205,245,308,339,357,415,524,537,1455,
%T 1500
%N Numbers k such that A073605(k) is prime.
%C No other terms below 2200. [_Max Alekseyev_, May 11 2009]
%e a(1)=3 because A073605(3)=7 is prime and A073605(1) and A073605(2) aren't primes.
%t For[k = 0, k < 875, If[PrimeQ[ChineseRemainder[ -Range[k], Prime[Range[k]]]], Print[k]], k++ ]
%Y Cf. A053664, A073605, A053664.
%K nonn,more
%O 1,1
%A _Farideh Firoozbakht_, Jun 07 2003
%E a(20)-a(21) from _Max Alekseyev_, May 11 2009
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