OFFSET
1,1
LINKS
Pierre CAMI, Table of n, a(n) for n = 1..1300
Pierre CAMI, PFGW Script
EXAMPLE
3*2^1-1-2=3, 3*2^1-1=5, 3*2^1-1+2=7, so first pair = 3,2 (the only one with g=2).
53*2^2-1-12=199, 53*2^2-1=211, 53*2^2-1+12=223, so second pair = 53,12.
CROSSREFS
KEYWORD
nonn
AUTHOR
Pierre CAMI, Nov 11 2013
STATUS
approved