Number of nX3 0..1 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order.
A222630
Number of nX3 0..1 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order.
Terms
- a(0) =1a(1) =3a(2) =5a(3) =34a(4) =67a(5) =388a(6) =915a(7) =4850a(8) =12037a(9) =63153a(10) =160358a(11) =836672a(12) =2142061a(13) =11227043a(14) =28804656a(15) =151800559a(16) =389791479a(17) =2064625690a(18) =5304948795a(19) =28213912362a(20) =72561522182a(21) =387104648245a(22) =996738887853
External references
- oeis: A222630