Number of 3 X n 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
A279979
Number of 3 X n 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =9a(2) =50a(3) =221a(4) =822a(5) =2669a(6) =8068a(7) =23169a(8) =64250a(9) =173509a(10) =459148a(11) =1195219a(12) =3069280a(13) =7791834a(14) =19587853a(15) =48827241a(16) =120818815a(17) =297018329a(18) =725970958a(19) =1765237102a(20) =4272245780a(21) =10296018246a(22) =24717636634a(23) =59130589267a(24) =140997069400a(25) =335205034089a(26) =794714054209
External references
- oeis: A279979