A031947 Numbers in which 0,1,2,3,4,5 all occur in base 6.

8345, 8350, 8375, 8385, 8410, 8415, 8525, 8530, 8585, 8600, 8620, 8630, 8735, 8745, 8765, 8780, 8835, 8840, 8950, 8955, 8980, 8990, 9015, 9020, 10505, 10510, 10535, 10545, 10570, 10575, 11045, 11050, 11165, 11190, 11200, 11220, 11255, 11265, 11345, 11370, 11415

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Comments

Contains numbers like 47265, 47290, 47295, 47405 which are absent in A049357. - R. J. Mathar, Aug 24 2023

Crossrefs

Cf. A007092 (base 6), A023744 (each base 6 digit once).

Programs

Maple

isA031947 := proc(n)
    convert(convert(n,base,6),set) ;
    if nops(%) = 6 then
        true;
    else
        false;
    end if;
end proc:
for n from 1 to 12000 do
    if isA031947(n) then
        print(n);
    end if;
end do: # R. J. Mathar, Aug 24 2023