# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a081448 Showing 1-1 of 1 %I A081448 #11 Mar 10 2015 11:17:45 %S A081448 1,4,1,2,2,1,1,1,2,1,2,1,2,2,1,2,1,1,3,1,3,2,5,2,4,3,4,1,2,3,5,1,7,1, %T A081448 1,1,2,8,1,8,3,1,2,11,2,5,5,5,6,1,1,2,3,1,2,6,4,5,7,1,7,4,7,3,2,1,2, %U A081448 25,6,4,2,1,7,2,1,4,4,3,1,3,2,1,10,3,5,2,1,1,1,2,4,3,2,17,9,2,9,3,9,2 %N A081448 a(n) = sqrt( A081447(n) )/6. %C A081448 Partial maxima are in A081452. %o A081448 (PARI) t=5; for(n=2, 100, for(k=1, 10^8, if(isprime(k^2+t), print1(k/6", "); t=t+k^2; break))) %Y A081448 Cf. A081447. %K A081448 nonn %O A081448 1,2 %A A081448 _Ralf Stephan_, Mar 21 2003 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE