Number of nX5 0..1 arrays with every element equal to 1, 2 or 3 king-move adjacent elements, with upper left element zero.
A297820
Number of nX5 0..1 arrays with every element equal to 1, 2 or 3 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =3a(1) =166a(2) =399a(3) =1395a(4) =4444a(5) =14237a(6) =43931a(7) =134395a(8) =412427a(9) =1268252a(10) =3904488a(11) =12035011a(12) =37073205a(13) =114147345a(14) =351479919a(15) =1082415552a(16) =3333611748a(17) =10266940149a(18) =31619860897a(19) =97381441665a(20) =299912849035a(21) =923670230344
External references
- oeis: A297820