A083507 n-th row of the following triangle contains all distinct numbers that can be obtained as the product of three distinct numbers chosen from 1 to n (for n>2). Sequence contains the triangle read by rows.

6, 6, 8, 12, 24, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 6, 8, 10, 12, 15, 18, 20, 24, 30, 36, 40, 48, 60, 72, 90, 120, 6, 8, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 48, 56, 60, 70, 72, 84, 90, 105, 120, 126, 140, 168, 210, 6, 8, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28

Offset

3,1

References

Amarnath Murthy, Generalization of partition function introducing Smarandache Factor Partitions, Smarandache Notions Journal, 1-2-3, Vol. 11, 2000.

Links

Table of n, a(n) for n=3..74.

Example

6
6,8,12,24
6,8,10,12,15,20,24,30,40,60
6,8,10,12,15,18,20,24,30,36,40,48,60,72,90
...

Crossrefs

Numbers of terms in rows are given by A027430.

Sequence in context: A315830 A183042 A351516 * A157320 A200616 A019851

Adjacent sequences: A083504 A083505 A083506 * A083508 A083509 A083510

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