%I #5 Jun 30 2015 17:12:57
%S 4,9,16,25,16,4,9,16,25,36,25,16,25,36,49,64,81,100,64,16,25,36,49,64,
%T 81,64,36,49,64,81,100,81,64,81,100,121,144,169,196,144,64,100,144,81,
%U 36,49,64,81,64,49,64,81,100,121,144,169,144,121,100,64,81
%N (A259260(n) + A259260(n+1)) / 2.
%C All terms are squares by definition of A259260.
%H Reinhard Zumkeller, <a href="/A259602/b259602.txt">Table of n, a(n) for n = 1..10000</a>
%o (Haskell)
%o a259602 n = a259602_list !! (n-1)
%o a259602_list = zipWith ((flip div 2 .) . (+))
%o a259260_list $ tail a259260_list
%Y Cf. A259260, A000290, A086517, A259603, A259604, A259605.
%K nonn
%O 1,1
%A _Reinhard Zumkeller_, Jun 30 2015