1 double is 2. 1+1=2
2 double is 4. 2+2=4
4 double is 8. 4+4=8
8 double is 7. 8+8=16 1+6=7
7 double is 5. 7+7=14 1+4=5
5 double is 1. 5+5=10 1+0=1
6 numbers of creation