Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,3,2,1 for x=0,1,2,3,4.
A196475
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,3,2,1 for x=0,1,2,3,4.
Terms
- a(0) =12a(1) =28a(2) =27a(3) =136a(4) =557a(5) =5955a(6) =38826a(7) =128960a(8) =351238a(9) =1374515a(10) =5837922a(11) =30814351a(12) =167525199a(13) =704218824a(14) =2677605502a(15) =10721905782a(16) =44470299831a(17) =200591500952a(18) =939099305213
External references
- oeis: A196475