Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.
A251463
Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.
Terms
- a(0) =1908a(1) =11134a(2) =62309a(3) =268559a(4) =1125843a(5) =4053903a(6) =14306546a(7) =46070347a(8) =145984578a(9) =437418593a(10) =1291704815a(11) =3690118027a(12) =10390300382a(13) =28744898692a(14) =78318248671a(15) =211976616993a(16) =564325050038
External references
- oeis: A251463