T(n,k)=Number of nXk 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.
A268971
T(n,k)=Number of nXk 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.
Terms
- a(0) =3a(1) =9a(2) =9a(3) =24a(4) =60a(5) =27a(6) =60a(7) =240a(8) =336a(9) =81a(10) =144a(11) =912a(12) =2016a(13) =1728a(14) =243a(15) =336a(16) =3312a(17) =11664a(18) =15552a(19) =8448a(20) =729a(21) =768a(22) =11664a(23) =63792a(24) =136080a(25) =114048a(26) =39936a(27) =2187a(28) =1728a(29) =40176
External references
- oeis: A268971