A151948 - OEIS

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A151948

tau (sigma (phi (n))).

1, 1, 2, 2, 2, 2, 6, 2, 6, 2, 6, 2, 6, 6, 4, 4, 2, 6, 4, 4, 6, 6, 9, 4, 8, 6, 4, 6, 8, 4, 12, 2, 8, 2, 12, 6, 4, 4, 12, 2, 12, 6, 12, 8, 12, 9, 12, 2, 12, 8 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	COMMENTS	`a(n) = A000005(A000203(A000010(n))) = A000005(A062402(n)) = A062068(A000010(n)).`
	CROSSREFS	`Sequence in context: A130754 A164126 A163368 * A080400 A119462 A096625` `Adjacent sequences: A151945 A151946 A151947 * A151949 A151950 A151951`
	KEYWORD	`nonn`
	AUTHOR	`Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Jul 20 2009`

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Last modified February 14 14:47 EST 2012. Contains 205623 sequences.