Number of (n+1)X(3+1) 0..3 arrays with the sum of all four elements of every 2X2 subblock equal.
A237010
Number of (n+1)X(3+1) 0..3 arrays with the sum of all four elements of every 2X2 subblock equal.
Terms
- a(0) =1936a(1) =3928a(2) =8416a(3) =20776a(4) =53200a(5) =149608a(6) =431584a(7) =1327432a(8) =4162576a(9) =13679848a(10) =45649696a(11) =157880776a(12) =552602320a(13) =1988104168a(14) =7216941664a(15) =26751072712a(16) =99788476816a(17) =378092200168
External references
- oeis: A237010