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%I #13 Feb 07 2018 02:54:35
%S 11,63,35,33,198,275,255,585,660,195,207,390,1449,187,1575,1683,1222,
%T 418,741,2457,2805,275,3465,270,2574,2205,4437,1518,3850,5369,5940,
%U 1225,6171,6426,3808,1950,7695,1890,8901,8976,9275,741,6435,297,10395,4615,12831,12870,13299,2133,13570,7843,10593,4901
%N 1/4 of the even edge of least 2-adic valuation of a primitive 3-simplex (0, b=A031173, c=A031174, d=A031175).
%C Each primitive 3-simplex (0,b,c,d) with b > c > d is built by 1 odd edge and 2 even edges; the edge that is considered here is the even one with the least 2-adic valuation.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/TrirectangularTetrahedron.html">Trirectangular Tetrahedron</a>
%Y Cf. A298044, A298047, A031173, A031174, A031175.
%K nonn
%O 1,1
%A _Ralf Steiner_, Jan 11 2018
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