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 A277028 Numbers that are never pandigital for any base b > 1. 1
 0, 1, 3, 7, 31, 255, 32767 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Here, a number is considered pandigital in base b if any digit from 0 to b-1 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). No other terms below 2^10^10. - Charles R Greathouse IV, Sep 26 2016 LINKS Rémy Sigrist, PARI/GP program for A277028 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 Cf. A055085, A171102. Sequence in context: A030521 A105767 A063896 * A156895 A074047 A121810 Adjacent sequences:  A277025 A277026 A277027 * A277029 A277030 A277031 KEYWORD nonn,base AUTHOR Rémy Sigrist, Sep 25 2016 STATUS approved

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Last modified April 17 02:26 EDT 2021. Contains 343059 sequences. (Running on oeis4.)