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%I #10 Dec 02 2020 05:35:44
%S 1,4,1,9,3,1,16,4,2,1,25,7,3,2,1,36,9,4,3,2,1,49,14,7,3,2,2,1,64,16,8,
%T 4,3,2,2,1,81,22,9,6,3,3,2,2,1,100,25,13,7,4,3,2,2,2,1,121,33,14,8,6,
%U 3,3,2,2,2,1,144,36,16,9,7,4,3,3,2,2,2,1,169,45,21,13,7,6,3,3,2,2,2,2,1
%N Triangle read by rows: T(n,k) (n>=k>=1) = floor((n/k)*ceiling(n/k)).
%H Robert J. McEliece and Herbert Taylor, <a href="https://doi.org/10.1016/0097-3165(73)90069-1">Covering tori with squares</a>, Journal of Combinatorial Theory, Series A 14.1 (1973): 119-124.
%e Triangle begins:
%e 1,
%e 4, 1,
%e 9, 3, 1,
%e 16, 4, 2, 1,
%e 25, 7, 3, 2, 1,
%e 36, 9, 4, 3, 2, 1,
%e 49, 14, 7, 3, 2, 2, 1,
%e 64, 16, 8, 4, 3, 2, 2, 1,
%e 81, 22, 9, 6, 3, 3, 2, 2, 1,
%e 100, 25, 13, 7, 4, 3, 2, 2, 2, 1,
%e 121, 33, 14, 8, 6, 3, 3, 2, 2, 2, 1,
%e 144, 36, 16, 9, 7, 4, 3, 3, 2, 2, 2, 1,
%e 169, 45, 21, 13, 7, 6, 3, 3, 2, 2, 2, 2, 1,
%e ...
%Y Cf. A331145-A331154.
%K nonn,tabl
%O 1,2
%A _N. J. A. Sloane_, Jan 14 2020
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