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

A304131

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

Terms

    a(0) =13a(1) =49a(2) =53a(3) =140a(4) =320a(5) =651a(6) =1321a(7) =2673a(8) =5293a(9) =10668a(10) =21704a(11) =43407a(12) =86685a(13) =174463a(14) =350613a(15) =704014a(16) =1416102a(17) =2846067a(18) =5718303a(19) =11503925a(20) =23146779a(21) =46553188a(22) =93651586a(23) =188449221a(24) =379193323a(25) =763054735a(26) =1535660833a(27) =3090522976a(28) =6219809542

External references