T(n,k)=Number of nXk binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once.
A268789
T(n,k)=Number of nXk binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =2a(4) =5a(5) =2a(6) =5a(7) =17a(8) =17a(9) =5a(10) =10a(11) =48a(12) =72a(13) =48a(14) =10a(15) =20a(16) =131a(17) =302a(18) =302a(19) =131a(20) =20a(21) =38a(22) =338a(23) =1144a(24) =1714a(25) =1144a(26) =338a(27) =38a(28) =71a(29) =850
External references
- oeis: A268789