Number of nX3 0..1 arrays with each 1 adjacent to 2, 4 or 5 king-move neighboring 1s.

A296969

Number of nX3 0..1 arrays with each 1 adjacent to 2, 4 or 5 king-move neighboring 1s.

Terms

    a(0) =1a(1) =11a(2) =31a(3) =78a(4) =295a(5) =959a(6) =2958a(7) =9835a(8) =32104a(9) =103383a(10) =337755a(11) =1101269a(12) =3580082a(13) =11672828a(14) =38060520a(15) =124033054a(16) =404479836a(17) =1319253933a(18) =4302723870a(19) =14036075984a(20) =45792455693a(21) =149403264722a(22) =487484967393

External references