Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,0,1,4 for x=0,1,2,3,4.
A196488
Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,0,1,4 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =3a(2) =9a(3) =23a(4) =69a(5) =199a(6) =553a(7) =1563a(8) =4439a(9) =12591a(10) =35645a(11) =100885a(12) =285753a(13) =809481a(14) =2292615a(15) =6492777a(16) =18388691a(17) =52081399a(18) =147506079a(19) =417765845a(20) =1183196095a(21) =3351057703a(22) =9490892585a(23) =26880156625a(24) =76130113051a(25) =215616141961a(26) =610669320471
External references
- oeis: A196488