Number of 4Xn 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.
A281768
Number of 4Xn 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) =0a(1) =20a(2) =90a(3) =560a(4) =2808a(5) =13968a(6) =68362a(7) =323280a(8) =1529974a(9) =7114300a(10) =32915192a(11) =151142772a(12) =689726508a(13) =3133687480a(14) =14169310798a(15) =63838844556a(16) =286639424578
External references
- oeis: A281768