On Thu, 20 Feb 2020, Sean A. Irvine wrote: > I'm not sure how far Scott already searched but I have a(92) > 3000000 and > a(98) > 3500000. (I haven't tried 44). I get a(98) = 259110640, a(44) > 10^10 and a(92) > 3.6*10^9. -- Joseph S. Myers jsm at polyomino.org.uk