Unchanging value maps: number of 2 X n binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 2 X n array.
A219143
Unchanging value maps: number of 2 X n binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 2 X n array.
Terms
- a(0) =1a(1) =6a(2) =18a(3) =39a(4) =96a(5) =225a(6) =543a(7) =1293a(8) =3096a(9) =7392a(10) =17673a(11) =42228a(12) =100929a(13) =241197a(14) =576441a(15) =1377606a(16) =3292314a(17) =7868187a(18) =18803964a(19) =44939013a(20) =107398431a(21) =256668285a(22) =613403916a(23) =1465955712a(24) =3503443917a(25) =8372776200a(26) =20009848437a(27) =47820940581a(28) =114285841233
External references
- oeis: A219143