Number of nX4 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,1) and new values introduced in order 0..2.

A275397

Number of nX4 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,1) and new values introduced in order 0..2.

Terms

    a(0) =14a(1) =324a(2) =444a(3) =1011a(4) =2404a(5) =8122a(6) =27373a(7) =94065a(8) =323306a(9) =1109170a(10) =3808690a(11) =13056118a(12) =44831206a(13) =154016128a(14) =529240302a(15) =1819237762a(16) =6248275627a(17) =21463735564a(18) =73700124392a(19) =253141996437a(20) =869508060107

External references