Subject: Not the sum of distinct squares

 2  3  6  7  8 11 12 15 18 19 22 23 24 27 28 31 32 33 43 44 47 48
60 67 72 76 92 96 108 112 128

These are the only natural numbers that can not be written as the
sum of one or more distinct squares.  (I.e. 21 = 1 + 4 + 16, so it
is *not* on the list.)

Source:  Paper, by me, as yet unpublished.  Proof available on
request.

Jeff Adams
Language Modeling Scientist
Kurzweil Applied Intelligence
http://www.kurz-ai.com/people/jeffa
----------------------------------------------------------------------
%I A001422
%S A001422 2,3,6,7,8,11,12,15,18,19,22,23,24,27,28,31,32,33,43,44,47,48,
%T A001422 60,67,72,76,92,96,108,112,128
%N A001422 Not the sum of distinct squares.
%R A001422 LE70 367. MOC 28 313 74. JRM 20 316 88.
%K A001422 nonn,fini,full
%O A001422 1,1
%A A001422 njas, jeffa@kurz-ai.com (Jeff Adams)