Number of nX2 0..2 arrays with every element value z a city block distance of exactly z from another element value z.
A209470
Number of nX2 0..2 arrays with every element value z a city block distance of exactly z from another element value z.
Terms
- a(0) =2a(1) =13a(2) =93a(3) =635a(4) =4357a(5) =27989a(6) =175599a(7) =1097149a(8) =6898767a(9) =43661399a(10) =277088463a(11) =1758632349a(12) =11151301399a(13) =70656266965a(14) =447562532731
External references
- oeis: A209470