%I #3 Jul 14 2012 11:32:32
%S 1,5,6,7,13,14,15,16,17,25,26,27,28,29,30,31,41,42,43,44,45,46,47,48,
%T 49,61,62,63,64,65,66,67,68,69,70,71,85,86,87,88,89,90,91,92,93,94,95,
%U 96,97,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,145,146
%N n + (least square > n), i.e., n + A048761(n+1).
%F a(n) = A001477(n) + A048761(n+1)
%e a(4)= 13 = 4+9 because 9 is the least square > 4.
%o (PARI) A165776(n)=n+(sqrtint(n)+1)^2
%Y Cf. A165775.
%K easy,nonn
%O 0,2
%A _M. F. Hasler_, Oct 05 2009