

A083506


nth 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.


0



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
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OFFSET

2,1


REFERENCES

Amarnath Murthy, Generalization of partition function introducing Smarandache Factor Partitions, Smarandache Notions Journal, 123, Vol. 11, 2000.


LINKS

Table of n, a(n) for n=2..85.


EXAMPLE

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,...
...


CROSSREFS

A027428 gives the row lengths.
Sequence in context: A002163 A093422 A297890 * A248164 A210222 A207621
Adjacent sequences: A083503 A083504 A083505 * A083507 A083508 A083509


KEYWORD

nonn,tabf


AUTHOR

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 05 2003


EXTENSIONS

More terms from David Wasserman, Nov 18 2004


STATUS

approved



