%I A056892
%S A056892 1,2,1,3,2,4,1,3,7,4,6,1,5,7,11,4,10,12,3,7,9,15,2,8,16,1,3,7,9,13,6,
%T A056892 10,16,18,5,7,13,19,23,4,10,12,22,24,1,3,15,27,2,4,8,14,16,26,1,7,13,
%U A056892 15,21,25,27,4,18,22,24,28,7,13,23,25,29,35,6,12,18,22,28,36,1,9,19,21
%N A056892 Square excess of n-th prime.
%F A056892 a(n) = A053186(A000040(n))
%F A056892 A056892 = A000040 - A000006^2 [From M. F. Hasler (MHasler(AT)univ-ag.fr), 
               Oct 04 2009]
%e A056892 a(5) = 2 since 5th prime is 11 = 3^2+2
%t A056892 lst={};Do[p=Prime[n];s=p^(1/2);f=Floor[s];a=f^2;d=p-a;AppendTo[lst,d],
               {n,6!}];lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Mar 
               11 2009]
%o A056892 (PARI) A056892(n)={my(p=prime(n));p-sqrtint(p)^2)} [From M. F. Hasler 
               (MHasler(AT)univ-ag.fr), Oct 04 2009]
%Y A056892 Cf. A000040, A000196, A002496, A048760, A053186, A056892-A056898.
%Y A056892 Sequence in context: A023129 A007337 A167430 this_sequence A136523 A163507 
               A003963
%Y A056892 Adjacent sequences: A056889 A056890 A056891 this_sequence A056893 A056894 
               A056895
%K A056892 nonn
%O A056892 1,2
%A A056892 Henry Bottomley (se16(AT)btinternet.com), Jul 05 2000