Number of nX7 0..1 arrays with no element equal to more than two of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
A280603
Number of nX7 0..1 arrays with no element equal to more than two of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =64a(1) =1063a(2) =1844a(3) =3996a(4) =8031a(5) =15792a(6) =31152a(7) =62349a(8) =126893a(9) =261994a(10) =546766a(11) =1149413a(12) =2427843a(13) =5143554a(14) =10917253a(15) =23198800a(16) =49332659a(17) =104956473a(18) =223368832a(19) =475481120a(20) =1012314087a(21) =2155517167a(22) =4590184433a(23) =9775585448a(24) =20820112373
External references
- oeis: A280603