Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,0,0,0 for x=0,1,2,3,4.
A197472
Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,0,0,0 for x=0,1,2,3,4.
Terms
- a(0) =4a(1) =24a(2) =181a(3) =748a(4) =5408a(5) =22672a(6) =151748a(7) =684002a(8) =4368923a(9) =20344854a(10) =126020110a(11) =603916958a(12) =3643523708a(13) =17866994674a(14) =105586791488a(15) =527450827498
External references
- oeis: A197472