References to A171920

Numbers n with at least one solution to n=x*y*z, x+y-z=1 with ordered triples (x,y,z), x,y,z>=1.
1, 4, 9, 12, 16, 24, 25, 36, 40, 45, 49, 60, 64, 72, 81, 84, 100, 105, 112, 121, 144, 160

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