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Search: id:A051640
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| A051640 |
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a(n) contains the digit b-1 in all bases b from 2 to n. |
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+0
2
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| 1, 2, 7, 14, 23, 47, 47, 239, 239, 239, 239, 5927, 13679, 13679, 13679, 57119, 159119, 500399, 500399, 1627919, 2585519, 3694397, 7305479, 17067599, 41126399, 41126399, 41126399, 61483967, 586370399, 589188599, 1278033119, 1278033119
(list; graph; listen)
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OFFSET
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2,2
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EXAMPLE
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47 = 101111 (base 2), 1202 (base 3), 233 (base 4), 142 (base 5), 115 (base 6), 65 (base 7), 57 (base 8). Base 2 representation contains digit 1, base 3 representation contains digit 2, base 4 representation contains digit 3, etc., so a(8)=47.
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CROSSREFS
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Sequence in context: A087324 A008865 A018392 this_sequence A119354 A088207 A102999
Adjacent sequences: A051637 A051638 A051639 this_sequence A051641 A051642 A051643
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KEYWORD
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base,nonn,nice
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AUTHOR
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Jeff Burch (gburch(AT)erols.com), Jun 04 2000
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EXTENSIONS
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More terms from Ulrich Schimke (UlrSchimke(AT)aol.com), Jun 12, 2000
Definition corrected by Frank Adams-Watters (FrankTAW(AT)Netscape.net), Apr 10 2006
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