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A079323
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First number in a sequence of 4 consecutive economical numbers.
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0
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179210312, 10189653632, 11306629375, 12372501247, 12450928125, 16064890623, 100911346046, 102029981184, 103029727742, 103538511872, 103852693375, 105264783872, 107943730622, 112167589373, 114281242494, 115827546751
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| 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
| Cf. A047738.
Sequence in context: A206520 A127955 A047738 * A204529 A180464 A179586
Adjacent sequences: A079320 A079321 A079322 * A079324 A079325 A079326
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KEYWORD
| hard,nonn
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AUTHOR
| Sudipta Das (juitech(AT)vsnl.net), Feb 12 2003
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EXTENSIONS
| a(7)-a(16) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Apr 14 2010
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