Number of 7 X n 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.
A208642
Number of 7 X n 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.
Terms
- a(0) =64a(1) =610a(2) =2552a(3) =7548a(4) =18888a(5) =43284a(6) =94320a(7) =199299a(8) =412962a(9) =844943a(10) =1714680a(11) =3461238a(12) =6962956a(13) =13976742a(14) =28016664a(15) =56111133a(16) =112317270a(17) =224749641a(18) =449637728a(19) =899440872a(20) =1799078160a(21) =3598388200a(22) =7197048672a(23) =14394415431a(24) =28789200714
External references
- oeis: A208642