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%I #35 Apr 20 2024 02:01:35
%S 1,3,6,9,10,31,47,70,281,366,519,532,775,1566,1627,2247,2653,4381,
%T 4571,7513,10581,13239,15393,72267,105515,215802
%N Integers k such that 10^k + 33 is prime.
%C The next term, if it exists, is > 39546. - _Robert Price_, Aug 21 2010
%C See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10033".
%C a(26) > 3*10^5. - _Robert Price_, Oct 26 2023
%H Makoto Kamada, <a href="https://stdkmd.net/nrr/prime/prime_difficulty.txt">Search for 10w33</a>.
%H <a href="/index/Pri#Pri_rep">Index entries for primes involving repunits</a>.
%e For k = 3 we get 10^3 + 33 = 1000 + 33 = 1033, which is prime, so 3 is a term.
%Y Cf. A049054, A088274, A088275, A095688, A108052, A108050, A108049, A108054.
%K nonn,more
%O 1,2
%A Julien Peter Benney (jpbenney(AT)ftml.net), Jun 08 2005
%E a(20)-a(23) from _Robert Price_, Aug 21 2010
%E Edited by _Ray Chandler_, Dec 23 2010
%E a(24) from _Robert Price_, Jan 29 2011
%E a(26) from _Robert Price_, Oct 26 2023
%E a(25) from Kamada data by _Tyler Busby_, Apr 16 2024
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