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A161359 Number of squares in inner rectangle described in A168339. 2


%S 0,1,3,4,4,6,8,7,9,10,10,12,12,14,15,16,18,17,21,20,21,23,22,24,24,28,

%T 27,28,31,30,32,31,33,36,35,36,40,39,38,40,40,42,45,44,45,45,49,48,50,

%U 49,53,52,52,54,55,56,60,59,58,60,60,64,63,66,65,66,68,67,71,70,72,71

%N Number of squares in inner rectangle described in A168339.

%F a(n) = A168339(n) - 2*(A161357(n)+A161358(n)) - 4.

%Y Cf. A168339, A161369.

%K nonn

%O 1,3

%A _R. H. Hardin_ and _N. J. A. Sloane_, Nov 27 2009

%E More terms (variables cost-2*(dimm+dimn)-4 of the C program in A168339) added by _R. J. Mathar_, Mar 06 2010

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Last modified August 4 15:50 EDT 2020. Contains 336202 sequences. (Running on oeis4.)