Number of n X 3 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
A299047
Number of n X 3 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =3a(1) =4a(2) =11a(3) =40a(4) =79a(5) =480a(6) =1542a(7) =5317a(8) =22571a(9) =80346a(10) =297210a(11) =1158279a(12) =4266972a(13) =16017750a(14) =60820802a(15) =227040843a(16) =853970252a(17) =3218688708a(18) =12071422085a(19) =45398669314a(20) =170767134707a(21) =641450486645
External references
- oeis: A299047