27 Feb
2003
27 Feb
'03
2 a.m.
Compare A040104 and A048051 Click on the first link in A040104: http://www.primepuzzles.net/problems/prob_017.htm
The list of 10 wasn't proved to be the largest, it was just the largest known at the time. There is now a sequence with 12 terms known. -- Mike Stay staym@clear.net.nz