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

A297981

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

Terms

    a(0) =1a(1) =6a(2) =2a(3) =5a(4) =7a(5) =14a(6) =21a(7) =41a(8) =70a(9) =129a(10) =233a(11) =428a(12) =783a(13) =1445a(14) =2664a(15) =4933a(16) =9137a(17) =16956a(18) =31495a(19) =58557a(20) =108952a(21) =202837a(22) =377797a(23) =703972a(24) =1312155a(25) =2446433a(26) =4562176a(27) =8509137a(28) =15873089a(29) =29613308

External references