Number of 3Xn 0..1 arrays with no more than floor(3Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
A222543
Number of 3Xn 0..1 arrays with no more than floor(3Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
Terms
- a(0) =4a(1) =5a(2) =9a(3) =32a(4) =70a(5) =361a(6) =842a(7) =4314a(8) =10268a(9) =51979a(10) =125504a(11) =636450a(12) =1549956a(13) =7874707a(14) =19306562a(15) =98320042a(16) =241866468a(17) =1235742867a(18) =3045772687a(19) =15611773095a(20) =38529726995a(21) =198047702901a(22) =489385598261
External references
- oeis: A222543