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A050737
Numbers of form 7^k (values of k see A050728) containing no pair of consecutive equal digits (probably finite).
0
1, 7, 49, 343, 2401, 16807, 823543, 5764801, 40353607, 282475249, 13841287201, 232630513987207, 65712362363534280139543
OFFSET
0,2
CROSSREFS
Sequence in context: A206453 A000420 A373283 * A195908 A033143 A024582
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Sep 15 1999
STATUS
approved