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A131801 Increment each prime factor for each term of the least prime sequence A087443. 2
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..42.

FORMULA

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

EXAMPLE

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.

Sequence in context: A147516 A233819 A131822 * A280963 A122819 A056287

Adjacent sequences:  A131798 A131799 A131800 * A131802 A131803 A131804

KEYWORD

easy,tabf,nonn

AUTHOR

Alford Arnold, Jul 16 2007

EXTENSIONS

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

STATUS

approved

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Last modified June 22 23:15 EDT 2017. Contains 288633 sequences.