Number of n X 3 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
A281760
Number of n X 3 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =2a(1) =14a(2) =47a(3) =90a(4) =201a(5) =374a(6) =672a(7) =1172a(8) =2015a(9) =3442a(10) =5859a(11) =9952a(12) =16876a(13) =28574a(14) =48309a(15) =81554a(16) =137477a(17) =231418a(18) =389016a(19) =653080a(20) =1095019a(21) =1833842a(22) =3067719a(23) =5126372a(24) =8557988a(25) =14273314a(26) =23784417a(27) =39600082a(28) =65880265a(29) =109518782
External references
- oeis: A281760