%I A110660
%S A110660 0,0,2,2,6,6,12,12,20,20,30,30,42,42,56,56,72,72,90,90,110,110,132,132,
%T A110660 156,156,182,182,210,210,240,240,272,272,306,306,342,342,380,380,420,
%U A110660 420,462,462,506,506,552,552,600,600,650,650,702,702,756,756,812,812
%N A110660 Pronic numbers repeated.
%C A110660 a(floor(n/2)) = A002378(n);
%C A110660 a(n) = A028242(n) * A110654(n) = A008805(n)/2.
%H A110660 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PronicNumber.html">Pronic Number</a>
%F A110660 a(n) = floor(n/2)*(floor(n/2)+1).
%Y A110660 Cf. A109613.
%Y A110660 Sequence in context: A032043 A028476 A051548 this_sequence A139550 A060549 
               A120690
%Y A110660 Adjacent sequences: A110657 A110658 A110659 this_sequence A110661 A110662 
               A110663
%K A110660 nonn
%O A110660 0,3
%A A110660 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 05 2005