Half the number of n X 3 binary arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors.
A183399
Half the number of n X 3 binary arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors.
Terms
- a(0) =4a(1) =2a(2) =6a(3) =32a(4) =110a(5) =450a(6) =1680a(7) =6498a(8) =24794a(9) =95048a(10) =364030a(11) =1394450a(12) =5342640a(13) =20467202a(14) =78415506a(15) =300419072a(16) =1150965830a(17) =4409544050a(18) =16893761040a(19) =64722982898a(20) =247965235594a(21) =949998793608
External references
- oeis: A183399