Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.
A304540
Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =5a(1) =17a(2) =19a(3) =70a(4) =124a(5) =328a(6) =808a(7) =2265a(8) =6025a(9) =17221a(10) =50786a(11) =150521a(12) =450244a(13) =1372877a(14) =4203380a(15) =12926183a(16) =39917505a(17) =123702709a(18) =384029038a(19) =1194002908a(20) =3716951098a(21) =11582357384a(22) =36113695489a(23) =112659146087a(24) =351593620707
External references
- oeis: A304540