Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

A279735

Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

Terms

    a(0) =0a(1) =2a(2) =8a(3) =26a(4) =80a(5) =240a(6) =708a(7) =2062a(8) =5944a(9) =16990a(10) =48220a(11) =136032a(12) =381768a(13) =1066586a(14) =2968040a(15) =8230370a(16) =22751528a(17) =62716752a(18) =172447884a(19) =473081830a(20) =1295113240a(21) =3538749862a(22) =9652296628a(23) =26285128896a(24) =71472896400a(25) =194075990450a(26) =526312559048

External references