Number of n X 6 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

A280552

Number of n X 6 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

Terms

    a(0) =6a(1) =194a(2) =670a(3) =1666a(4) =3438a(5) =6502a(6) =11697a(7) =20440a(8) =35226a(9) =60300a(10) =102974a(11) =175746a(12) =299975a(13) =512080a(14) =874058a(15) =1491286a(16) =2542606a(17) =4331134a(18) =7369949a(19) =12526488a(20) =21265610a(21) =36058400a(22) =61069118a(23) =103308602a(24) =174569331a(25) =294669456a(26) =496887354a(27) =837059626

External references