Number of (1+1) X (n+1) 0..1 arrays with no element having a strict majority of its horizontal and antidiagonal neighbors equal to one.

A231998

Number of (1+1) X (n+1) 0..1 arrays with no element having a strict majority of its horizontal and antidiagonal neighbors equal to one.

Terms

    a(0) =4a(1) =6a(2) =16a(3) =39a(4) =81a(5) =168a(6) =361a(7) =780a(8) =1681a(9) =3612a(10) =7744a(11) =16620a(12) =35721a(13) =76755a(14) =164836a(15) =354006a(16) =760384a(17) =1633275a(18) =3508129a(19) =7535088a(20) =16184529a(21) =34762680a(22) =74666881a(23) =160377096a(24) =344473600a(25) =739894200a(26) =1589218225a(27) =3413480691a(28) =7331811876a(29) =15747991350

External references