Number of 6 X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically.
A207491
Number of 6 X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically.
Terms
- a(0) =22a(1) =484a(2) =942a(3) =3947a(4) =12151a(5) =26980a(6) =73325a(7) =170276a(8) =397692a(9) =935992a(10) =2150515a(11) =5001837a(12) =11588452a(13) =26898291a(14) =62652794a(15) =146079354a(16) =341212080a(17) =797873693a(18) =1867537041a(19) =4374817504a(20) =10252438677a(21) =24034757838a(22) =56361090296a(23) =132187700546
External references
- oeis: A207491