Number of nX5 0..1 arrays with every element unequal to 0, 1, 2 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318072
Number of nX5 0..1 arrays with every element unequal to 0, 1, 2 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =42a(2) =81a(3) =149a(4) =316a(5) =854a(6) =2195a(7) =5752a(8) =15565a(9) =41364a(10) =110930a(11) =299210a(12) =802420a(13) =2158664a(14) =5810654a(15) =15618316a(16) =42022876a(17) =113058411a(18) =304076748a(19) =818075794a(20) =2200737667a(21) =5919964491a(22) =15925927942a(23) =42842509441a(24) =115250505252a(25) =310041060554
External references
- oeis: A318072