Number of nX3 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,1) and new values introduced in order 0..2.

A275396

Number of nX3 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,1) and new values introduced in order 0..2.

Terms

    a(0) =5a(1) =54a(2) =84a(3) =178a(4) =394a(5) =1017a(6) =2645a(7) =6980a(8) =18464a(9) =48959a(10) =129079a(11) =340418a(12) =895555a(13) =2359728a(14) =6219251a(15) =16402499a(16) =43261910a(17) =114071354a(18) =300754298a(19) =792805040a(20) =2090067487a(21) =5510137826a(22) =14527552687a(23) =38302379482a(24) =100983905166a(25) =266240696535

External references