Number of 5 X n array permutations with each element not moving, or moving one space N, SW or SE.
A189437
Number of 5 X n array permutations with each element not moving, or moving one space N, SW or SE.
Terms
- a(0) =1a(1) =20a(2) =109a(3) =841a(4) =5680a(5) =40065a(6) =278105a(7) =1940868a(8) =13518605a(9) =94223329a(10) =656569824a(11) =4575509121a(12) =31884910129a(13) =222195588532
External references
- oeis: A189437