[seqfan] minimal pandiagonal 4x4 magic square composed of consecutive primes

Max Alekseyev maxale at gmail.com
Wed Jul 30 16:03:08 CEST 2014


SeqFans,

A minimal 6x6 pandiagonal magic square composed of consecutive primes
is known for a long time:
https://oeis.org/A073523

I'd like to report that now we know such 4x4 square:

170693941183817 170693941183933 170693941183949 170693941183981
170693941183979 170693941183951 170693941183847 170693941183903
170693941183891 170693941183859 170693941184023 170693941183907
170693941183993 170693941183937 170693941183861 170693941183889

which consists of 16 consecutive primes starting with 170693941183817:
https://oeis.org/A245721

Regards,
Max



More information about the SeqFan mailing list