Number of addition sums of the form x + y = z with 0 < x < y in base n, where each digit of the base appears at most once among all of x, y and z.
A387334
Number of addition sums of the form x + y = z with 0 < x < y in base n, where each digit of the base appears at most once among all of x, y and z.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =6a(5) =17a(6) =40a(7) =153a(8) =650a(9) =1991a(10) =6580a(11) =29855a(12) =135510a(13) =552769a(14) =2286248a(15) =12645869a(16) =66642290a(17) =327091959a(18) =1705795612a(19) =9596727627
External references
- oeis: A387334