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A109912
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Beginning with 1, least multiple of a(n) not divisible by 5 such that no digit is common between a(n) and a(n+1).
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1
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1, 2, 4, 8, 16, 32, 64, 128, 3456, 127872, 6649344, 1010700288, 46655946694656, 1313038307827703808, 946546544999554566644656594944, 183011223033027037132010301880878170112
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OFFSET
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0,2
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COMMENTS
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The sequence seems to be finite but not obviously. Can someone prove this and find the last term?
Conjecture: Sequence is infinite with terms from a(12) onwards alternating between integers with the four digits 4,5,6,9 and integers with the remaining six digits 0,1,2,3,7,8. - William Rex Marshall, Jul 19 2005
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LINKS
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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