Number of n X 3 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

A298377

Number of n X 3 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =7a(2) =6a(3) =18a(4) =30a(5) =87a(6) =200a(7) =522a(8) =1421a(9) =3805a(10) =10578a(11) =29465a(12) =82498a(13) =232593a(14) =656577a(15) =1858073a(16) =5265011a(17) =14930674a(18) =42368708a(19) =120274026a(20) =341518697a(21) =969915776a(22) =2754886812a(23) =7825418473a(24) =22229715609a(25) =63150286472a(26) =179401787689a(27) =509665128216

External references