Number of nX3 0..1 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
A222536
Number of nX3 0..1 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
Terms
- a(0) =1a(1) =5a(2) =9a(3) =58a(4) =155a(5) =871a(6) =2393a(7) =13852a(8) =38685a(9) =227848a(10) =638554a(11) =3811983a(12) =10724465a(13) =64547868a(14) =182220044a(15) =1102419756a(16) =3122673165a(17) =18955832586a(18) =53858530973a(19) =327720105059a(20) =933666488801
External references
- oeis: A222536