Number of n X 7 0..1 arrays with every element equal to 0, 1 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
A301963
Number of n X 7 0..1 arrays with every element equal to 0, 1 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =21a(1) =35a(2) =132a(3) =443a(4) =1803a(5) =7795a(6) =33860a(7) =148299a(8) =646838a(9) =2827081a(10) =12348295a(11) =53946658a(12) =235669276a(13) =1029543928a(14) =4497666250a(15) =19648472006a(16) =85836276153a(17) =374983965881
External references
- oeis: A301963