Hosted by The Math Forum## Problem of the Week 1217## Integer Pairs
True or False. For any positive integer n, it is possible to divide the integers
If one finds the unpaired integer inelegant, one can use the integers There are many variations obtained by using different target sets. Here are some examples. And one can treat the case of odd n in two ways (as noted above) by either including 0, or allowing one unpaired number. So the general problem has this form.
Variation 1. Call an integer n "pairable" with respect to property P if the set
Variation 2. Call an integer n "pairable" with respect to property P if the the set Which n are pairable (using either variation) for the squares? the primes? the Fibonacci numbers?
Source: G. Hamilton, K.S. Kedlaya, and H. Picciotto, Square-sum pair partitions, |

December 2015