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%I #34 Sep 08 2022 08:45:24
%S 1,1,1,1,2,2,3,3,4,5,6,7,8,8,9,10,11,12,13,14,14,15,16,17,19,20,20,21,
%T 21,22,25,26,27,27,29,30,31,32,33,34,35,36,38,38,39,39,42,44,45,45,46,
%U 47,48,50,51,52,53,54,55,56,56,58,61,62,62,63,66,67,69
%N a(n) = floor(prime(n)/5) for n > 2, a(1) = a(2) = 1.
%H G. C. Greubel, <a href="/A116572/b116572.txt">Table of n, a(n) for n = 1..5000</a>
%t Join[{1, 1}, Quotient[Prime[Range[3, 80]], 5]] (* _Vincenzo Librandi_, Apr 14 2015 *)
%o (Magma) [1,1] cat [NthPrime(n) div 5: n in [3..80]]; // _Vincenzo Librandi_, Apr 14 2015
%o (PARI) a(n)=if(n<5, 1, prime(n)\5) \\ _Charles R Greathouse IV_, Sep 21 2017
%K nonn,easy,less
%O 1,5
%A _Roger L. Bagula_, Mar 18 2006
%E More terms from _Vincenzo Librandi_, Apr 14 2015
%E Offset corrected by _Charles R Greathouse IV_, Sep 21 2017
%E New name from _Charles R Greathouse IV_, Sep 21 2017
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