Number of nX3 0..1 arrays with every element unequal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318093
Number of nX3 0..1 arrays with every element unequal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =16a(2) =45a(3) =220a(4) =795a(5) =3310a(6) =12774a(7) =51298a(8) =201637a(9) =802119a(10) =3169137a(11) =12571062a(12) =49748730a(13) =197152806a(14) =780649100a(15) =3092658411a(16) =12248195877a(17) =48517164179a(18) =192162096401a(19) =761151962411
External references
- oeis: A318093