A111467 The following triangle contains n smallest numbers with the prime signature of n!. Sequence contains the triangle by rows.

1, 2, 3, 6, 10, 14, 24, 40, 54, 56, 120, 168, 264, 270, 280, 720, 1008, 1200, 1584, 1620, 1872, 5040, 7920, 8400, 9360, 11088, 11340, 11760, 40320, 63360, 67200, 74880, 88704, 94080, 97920, 104832, 362880, 570240, 673920, 798336, 881280, 943488, 984960, 1192320, 1224720

Offset: 1

Author

Amarnath Murthy, Aug 05 2005

Keywords

• easy
• nonn
• tabl

Comments

1

2 3

6 10 14

24 40 54 56

...

n! is the smallest number with that prime signature.

Examples

			4! = 24 = 2^3*3, 40 = 2^3*5, 54=3^3*2, 56=2^3*7
Hence the row corresponding n = 4 is 24,40,54,56.
		

Crossrefs

Cf. A111468, A111469.

Extensions

More terms from R. J. Mathar, May 08 2007