T(n,k)=Number of nXk array permutations with each element not moving, or moving one space N, SW or SE.
A189435
T(n,k)=Number of nXk array permutations with each element not moving, or moving one space N, SW or SE.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =1a(7) =3a(8) =5a(9) =1a(10) =1a(11) =5a(12) =9a(13) =9a(14) =1a(15) =1a(16) =8a(17) =29a(18) =31a(19) =20a(20) =1a(21) =1a(22) =13a(23) =65a(24) =140a(25) =109a(26) =41a(27) =1a(28) =1a(29) =21
External references
- oeis: A189435