Numbers with anticlosed sets of non-squares

[hv at crypt.org]

jens at voss-ahrensburg.de wrote:
:Zitat von hv at crypt.org:
:> Am I misunderstanding something or is '7' a typo for '9'?
:
:No, the '7' is the effect of a bug in my program ;(
:
:>  n = 7 => T = { 3, 5, 6 } and 3 + 3 = 6
:
:Correct, the 7 should be out!
:
:>  n = 9 => T = { 2, 5, 8 }, and [ T, + ] = [ T, * ] = { 1, 4, 7 }
:
:If I am not mistaken here, T = {2, 3, 5, 6, 8} and 2 + 3 = 5, so 9
:is out, too.

Oops yes, my mistake.

Hugo