109065domain: NAppears in sequencesThe smallest magic constant for n X n magic square with prime entries (regarding 1 as a prime).at n=28A073502Hexanacci numbers: a(n)=a(n-1)+a(n-2)+a(n-3)+a(n-4)+a(n-5)+a(n-6), {0,1,2,3,4,5...}.at n=19A145030