Unchanging value maps: number of n X 2 binary arrays indicating the locations of corresponding elements unequal to no horizontal, antidiagonal or vertical neighbor in a random 0..1 n X 2 array.
A219150
Unchanging value maps: number of n X 2 binary arrays indicating the locations of corresponding elements unequal to no horizontal, antidiagonal or vertical neighbor in a random 0..1 n X 2 array.
Terms
- a(0) =2a(1) =4a(2) =9a(3) =21a(4) =49a(5) =115a(6) =269a(7) =628a(8) =1468a(9) =3433a(10) =8025a(11) =18758a(12) =43851a(13) =102512a(14) =239638a(15) =560193a(16) =1309554a(17) =3061318a(18) =7156366a(19) =16729268a(20) =39107635a(21) =91421020a(22) =213712795a(23) =499591476a(24) =1167883505a(25) =2730134349a(26) =6382172117a(27) =14919456700a(28) =34876870155a(29) =81530855583
External references
- oeis: A219150