A131801 Increment each prime factor for each term of the least prime sequence A087443.

1, 3, 9, 15, 27, 45, 105, 81, 135, 225, 315, 1155, 243, 405, 675, 945, 1575, 3465, 15015, 729, 1215, 2025, 3375, 2835, 4725, 10395, 11025, 17325, 45045, 255255, 2187, 3645, 6075, 10125, 8505, 14175, 23625, 31185, 33075, 51975, 121275, 135135, 225225

Offset: 0

Author

Alford Arnold, Jul 16 2007

Keywords

• easy
• tabf
• nonn

Examples

			The term 30 = 2*3*5
becomes 105 = 3*5*7
A087443 begins
1
2
4...6
8...12...30
16
etc
so a(n) begins
1
3
9...15
27..45..105
81
etc
		

Crossrefs

Cf. A025487.

Cf. A131822.

Formula

T(n,k) = A003961[A087443(n,k)]. - R. J. Mathar, Aug 01 2007

Extensions

More terms from R. J. Mathar, Aug 01 2007