Equals one maps: number of n X 2 binary arrays indicating the locations of corresponding elements equal to exactly one of their king-move neighbors in a random 0..1 n X 2 array.
A220971
Equals one maps: number of n X 2 binary arrays indicating the locations of corresponding elements equal to exactly one of their king-move neighbors in a random 0..1 n X 2 array.
Terms
- a(0) =2a(1) =2a(2) =9a(3) =23a(4) =58a(5) =149a(6) =379a(7) =969a(8) =2472a(9) =6304a(10) =16057a(11) =40876a(12) =104003a(13) =264525a(14) =672599a(15) =1709802a(16) =4345654a(17) =11043371a(18) =28060714a(19) =71294653a(20) =181127587a(21) =460138081a(22) =1168887760a(23) =2969221064a(24) =7542242881a(25) =19157959588a(26) =48662085275a(27) =123602270581
External references
- oeis: A220971