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%I #11 Sep 06 2017 03:26:56
%S 1,1,-2,1,-3,4,1,-4,6,-8,1,-5,10,-9,16,1,-6,15,-20,9,-32,1,-7,21,-35,
%T 36,0,64,1,-8,28,-56,70,-64,-27,-128,1,-9,36,-84,126,-125,120,81,256,
%U 1,-10,45,-120,210,-252,200,-240,-162,-512,1,-11,55,-165,330,-462,463,-275,496,243,1024,1,-12,66,-220,495,-792,924
%N Triangle related to number of compositions of n into relatively prime summands.
%H H. W. Gould, <a href="http://www.fq.math.ca/Scanned/2-4/gould.pdf">Binomial coefficients, the bracket function and compositions with relatively prime summands</a>, Fib. Quart. 2 (1964), 2.
%e Triangle begins:
%e 1;
%e 1, -2;
%e 1, -3, 4;
%e 1, -4, 6, -8;
%e 1, -5, 10, -9, 16;
%e 1, -6, 15, -20, 9, -32;
%e 1, -7, 21, -35, 36, 0, 64;
%e ...
%Y Cf. A126713.
%K tabl,sign
%O 2,3
%A _N. J. A. Sloane_.
%E More terms from _Vladeta Jovovic_, Feb 26 2008
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