Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
A207367
Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
Terms
- a(0) =25a(1) =625a(2) =3025a(3) =14641a(4) =45738a(5) =142884a(6) =353808a(7) =876096a(8) =1869192a(9) =3988009a(10) =7660492a(11) =14714896a(12) =26130832a(13) =46403344a(14) =77513748a(15) =129481641a(16) =205925763a(17) =327501409a(18) =500255371a(19) =764135449a(20) =1128442546a(21) =1666435684a(22) =2391271116a(23) =3431382084
External references
- oeis: A207367