Number of n X 4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.
A195974
Number of n X 4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.
Terms
- a(0) =5a(1) =23a(2) =36a(3) =67a(4) =133a(5) =256a(6) =455a(7) =931a(8) =1830a(9) =3565a(10) =7001a(11) =13872a(12) =27433a(13) =54401a(14) =108164a(15) =215285a(16) =428869a(17) =855426a(18) =1707759a(19) =3411577a(20) =6819860a(21) =13640635a(22) =27294311a(23) =54635604a(24) =109402661a(25) =219127235a(26) =438997334a(27) =879659285a(28) =1762952379a(29) =3533677212
External references
- oeis: A195974