Number of (n+3) X 4 binary arrays with no more than one of any consecutive four bits set in any row or column.
A203041
Number of (n+3) X 4 binary arrays with no more than one of any consecutive four bits set in any row or column.
Terms
- a(0) =209a(1) =637a(2) =2005a(3) =6365a(4) =19957a(5) =62393a(6) =195261a(7) =612041a(8) =1918365a(9) =6011045a(10) =18832757a(11) =59007013a(12) =184888993a(13) =579320337a(14) =1815187133a(15) =5687517861a(16) =17820706801a(17) =55837720705a(18) =174956625753a(19) =548192325273
External references
- oeis: A203041