Number of n X 4 0..1 arrays with every element unequal to 0, 1, 2 or 3 king-move adjacent elements, with upper left element zero.

A303723

Number of n X 4 0..1 arrays with every element unequal to 0, 1, 2 or 3 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =49a(2) =46a(3) =84a(4) =133a(5) =221a(6) =406a(7) =743a(8) =1327a(9) =2396a(10) =4385a(11) =8003a(12) =14556a(13) =26527a(14) =48421a(15) =88330a(16) =161061a(17) =293777a(18) =535950a(19) =977643a(20) =1783259a(21) =3252908a(22) =5933861a(23) =10824167a(24) =19744652a(25) =36017043a(26) =65700297a(27) =119846482a(28) =218616585a(29) =398787421

External references