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Search: id:A083506
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| A083506 |
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n-th row of the following triangle contains all distinct numbers that can be obtained as the product of two distinct numbers chosen from 1 to n. (n>1). Sequence contains the triangle read by rows. |
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+0
1
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| 2, 2, 3, 6, 2, 3, 4, 6, 8, 12, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 2, 3, 4, 5, 6, 8, 10, 12, 15, 18, 20, 24, 30, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 42, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 2, 3, 4, 5, 6, 7, 8, 9
(list; graph; listen)
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OFFSET
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2,1
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REFERENCES
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Amarnath Murthy, Generalization of partition function introducing Smarandache Factor Partitions, Smarandache Notions Journal, 1-2-3, Vol. 11, 2000.
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EXAMPLE
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2
2,3,6
2,3,4,6,8,12
2,3,4,5,6,8,10,12,15,20
2,3,4,5,6,8,10,12,15,16,18,20,24,30
2,3,4,5,6,7,8,10,12,...
...
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CROSSREFS
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A027428 gives the row lengths.
Sequence in context: A051005 A002163 A093422 this_sequence A076333 A015051 A064426
Adjacent sequences: A083503 A083504 A083505 this_sequence A083507 A083508 A083509
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KEYWORD
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nonn,tabf
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AUTHOR
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Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), May 05 2003
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EXTENSIONS
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More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Nov 18 2004
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