Number of 3 X n 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,-2) or (0,-1) and new values introduced in order 0..2.

A275143

Number of 3 X n 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,-2) or (0,-1) and new values introduced in order 0..2.

Terms

    a(0) =5a(1) =36a(2) =80a(3) =224a(4) =528a(5) =1216a(6) =2816a(7) =6544a(8) =15216a(9) =35376a(10) =82240a(11) =191184a(12) =444448a(13) =1033216a(14) =2401936a(15) =5583824a(16) =12980816a(17) =30176736a(18) =70152400a(19) =163084544a(20) =379125568a(21) =881360016a(22) =2048913456a(23) =4763145904a(24) =11072970816a(25) =25741534096a(26) =59841806560

External references