Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.
A304476
Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =64a(2) =94a(3) =297a(4) =931a(5) =2870a(6) =8058a(7) =25040a(8) =76568a(9) =231646a(10) =698547a(11) =2127306a(12) =6445956a(13) =19552446a(14) =59312328a(15) =179989186a(16) =545864508a(17) =1655917962a(18) =5023513454a(19) =15239822168a(20) =46229536379a(21) =140240525936a(22) =425432765173
External references
- oeis: A304476