Posted by Anonymous on Sunday, June 23, 2013 at 9:54am.
How many ways are there to write 2000 as the sum of powers of 2 with nonnegative exponents, where each power is used at most twice?

maths  MathMate, Sunday, June 23, 2013 at 10:51am
See:
http://www.jiskha.com/display.cgi?id=1371992237
If you do not agree with the response, please post and explain.