If the grid is numbered 1 2 3 4 5 6 7 8 9 10 11 12 ... I had to investigate the primes Primes less than 20 all up: http://earslap.com/projectslab/o

If the grid is numbered 1 2 3 4 5 6 7 8 9 10 11 12 ... I had to investigate the primes Primes less than 20 all up: http://earslap.com/projectslab/otomata/?q=1q2q4q6q1t3t7t http://earslap.com/projectslab/otomata/?q=1q2q4q6q1t3t7t all right: http://earslap.com/projectslab/otomata/?q=1w2w4w6w1y3y7y http://earslap.com/projectslab/otomata/?q=1w2w4w6w1y3y7y all left: http://earslap.com/projectslab/otomata/?q=1r2r4r6r1i3i7i http://earslap.com/projectslab/otomata/?q=1r2r4r6r1i3i7i all primes up : http://earslap.com/projectslab/otomata/?q=1q2q4q6q1t3t7t0o4o1d3d0j4j6j1x7x4n6n32720666 http://earslap.com/projectslab/otomata/?q=1q2q4q6q1t3t7t0o4o... all right : http://earslap.com/projectslab/otomata/?q=1w2w4w6w1y3y7y0p4p1f3f0k4k6k1c7c4m6m33730767 http://earslap.com/projectslab/otomata/?q=1w2w4w6w1y3y7y0p4p... all down : http://earslap.com/projectslab/otomata/?q=1e2e4e6e1u3u7u0a4a1g3g0l4l6l1v7v406034740868 http://earslap.com/projectslab/otomata/?q=1e2e4e6e1u3u7u0a4a... So many ideas... there goes my Sunday afternoon...