Number of n X 2 0..5 arrays with no element equal to another at a city block distance of exactly two, and new values 0..5 introduced in row major order.
A222868
Number of n X 2 0..5 arrays with no element equal to another at a city block distance of exactly two, and new values 0..5 introduced in row major order.
Terms
- a(0) =2a(1) =7a(2) =34a(3) =370a(4) =5314a(5) =82690a(6) =1313794a(7) =20983810a(8) =335593474a(9) =5368905730a(10) =85900132354
External references
- oeis: A222868