A003972 - OEIS

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A003972

Moebius transform of A003961.

1, 2, 4, 6, 6, 8, 10, 18, 20, 12, 12, 24, 16, 20, 24, 54, 18, 40, 22, 36, 40, 24, 28, 72, 42, 32, 100, 60, 30, 48, 36, 162, 48, 36, 60, 120, 40, 44, 64, 108, 42, 80, 46, 72, 120, 56, 52, 216, 110, 84, 72, 96, 58, 200, 72, 180, 88, 60, 60, 144, 66, 72, 200, 486, 96, 96, 70 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	FORMULA	`Multiplicative with a(p^e) = (q-1)q^(e-1) where q = nextPrime(p).. - David W. Wilson, Sep 01, 2001`
	CROSSREFS	`Sequence in context: A082990 A099188 A085271 * A023853 A056526 A049066` `Adjacent sequences: A003969 A003970 A003971 * A003973 A003974 A003975`
	KEYWORD	`nonn,mult`
	AUTHOR	`Marc LeBrun (mlb(AT)well.com)`
	EXTENSIONS	`More terms from David W. Wilson (davidwwilson(AT)comcast.net), Aug 29 2001`

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.