The number of Ulam numbers below 10^n.
A307331
The number of Ulam numbers below 10^n.
Terms
- a(0) =6a(1) =26a(2) =125a(3) =827a(4) =7584a(5) =74083a(6) =740368a(7) =7399353a(8) =73976842a(9) =739778038a(10) =7397814233a(11) =73979274540
External references
- oeis: A307331