Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

A299557

Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =18a(2) =15a(3) =34a(4) =77a(5) =230a(6) =734a(7) =2261a(8) =7050a(9) =22143a(10) =69461a(11) =219276a(12) =693784a(13) =2194918a(14) =6942360a(15) =21968267a(16) =69526220a(17) =220063117a(18) =696615382a(19) =2205253721a(20) =6981275736a(21) =22101410710a(22) =69970396941a(23) =221520928868a(24) =701324741453

External references