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A079323
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First number in a sequence of 4 consecutive economical numbers.
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1
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179210312, 10189653632, 11306629375, 12372501247, 12450928125, 16064890623, 100911346046, 102029981184, 103029727742, 103538511872, 103852693375, 105264783872, 107943730622, 112167589373, 114281242494, 115827546751
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listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(2) = 10189653632 because 10189653632 ( = 2^7 * 79606669), 10189653633 ( = 3^6 * 733 * 19069), 10189653634 ( = 2 * 227^2 * 98873), 10189653635 ( = 5 * 7^3 * 5941489) form a sequence of 4 consecutive economical numbers.
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CROSSREFS
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KEYWORD
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hard,nonn,base
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AUTHOR
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Sudipta Das (juitech(AT)vsnl.net), Feb 12 2003
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EXTENSIONS
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STATUS
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approved
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