a(n) = least positive integer m such that when m*(m+1) is written in base n, it contains every single digit exactly once, or 0 if no such number exists.
A381266
a(n) = least positive integer m such that when m*(m+1) is written in base n, it contains every single digit exactly once, or 0 if no such number exists.
Terms
- a(0) =1a(1) =0a(2) =12a(3) =34a(4) =134a(5) =0a(6) =1477a(7) =6891a(8) =38627a(9) =0a(10) =891230a(11) =4874690a(12) =28507439a(13) =0a(14) =1078575795a(15) =7002987575a(16) =46916000817a(17) =0a(21) =0a(25) =0
External references
- oeis: A381266