Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically.
A207274
Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically.
Terms
- a(0) =31a(1) =961a(2) =2305a(3) =13067a(4) =52240a(5) =135686a(6) =467686a(7) =1233127a(8) =3284096a(9) =8655283a(10) =21076355a(11) =52058229a(12) =123345376a(13) =288255238a(14) =665907876a(15) =1506716940a(16) =3386544920a(17) =7505699199a(18) =16482389432a(19) =35903584588a(20) =77477997261a(21) =166138926351a(22) =353659351084
External references
- oeis: A207274