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%I #16 Apr 30 2023 07:08:30
%S 0,1,2,3,4,5,6,7,11,20,27,28,34,63,77,125,237,255,272,332,389,848,
%T 1148,1216,1391,1426,1767,2254,2534,2722,3989,5029,5375,6125,6607,
%U 27286
%N Numbers k such that 2*3^k + 35 is prime.
%C a(36) > 21662. - _Jinyuan Wang_, Jan 20 2020
%t Do[ If[ PrimeQ[ 2*3^n + 35 ], Print[n] ], {n, 0, 6700} ]
%o (PARI) is(n)=ispseudoprime(2*3^n+35) \\ _Charles R Greathouse IV_, Jun 13 2017
%o (Magma) [n: n in [0..1000] | IsPrime(2*3^n+35)]; // _Jinyuan Wang_, Jan 20 2020
%K nonn,more
%O 1,3
%A _Robert G. Wilson v_, Feb 21 2001
%E a(36) from _Michael S. Branicky_, Apr 30 2023