

A277028


Numbers that are never pandigital for any base b > 1.


1




OFFSET

1,3


COMMENTS

Here, a number is considered pandigital in base b if any digit from 0 to b1 appears at least once in its base b representation (ignoring leading zeros).
This is a subsequence of A000225, conjectured to be finite (no other term below 2^1000000).


LINKS



EXAMPLE

32767 is not pandigital in any base b between 2 and 6:
b 32767 in base b Missing digits
  
2 111111111111111 0
3 1122221121 0
4 13333333 0, 2
5 2022032 1, 4
6 411411 0, 2, 3, 5
Moreover, 32767 is too small to be pandigital in any base b > 6, hence 32767 is in the sequence.


PROG

(PARI) See Sigrist link.


CROSSREFS



KEYWORD

nonn,base


AUTHOR



STATUS

approved



