Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
A304666
Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =53a(2) =66a(3) =249a(4) =832a(5) =1926a(6) =5311a(7) =15604a(8) =41101a(9) =113581a(10) =322499a(11) =878867a(12) =2424634a(13) =6783680a(14) =18692607a(15) =51620360a(16) =143530053a(17) =396942014a(18) =1097506347a(19) =3043745061a(20) =8426485347a(21) =23316586078a(22) =64599682220a(23) =178884708707a(24) =495183784333
External references
- oeis: A304666