Position in A171922 at which n first appears, or 0 if n never appears.
A171939
Position in A171922 at which n first appears, or 0 if n never appears.
Terms
- a(0) =1a(1) =2a(2) =7370a(3) =4a(4) =142a(5) =7a(6) =422a(7) =40a(8) =26
External references
- oeis: A171939