A163378 - OEIS

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A163378

sigma(phi(tau(n)))

1, 1, 1, 3, 1, 3, 1, 3, 3, 3, 1, 3, 1, 3, 3, 7, 1, 3, 1, 3, 3, 3, 1, 7, 3, 3, 3, 3, 1, 7, 1, 3, 3, 3, 3, 12, 1, 3, 3, 7, 1, 7, 1, 3, 3, 3, 1, 7, 3, 3 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,4`
	COMMENTS	`a(n) = A000203(A000010(A000005(n))) = A000203(A163109(n)) = A062402(A000005(n)).`
	CROSSREFS	`Sequence in context: A074122 A135023 A087822 * A025810 A001319 A110919` `Adjacent sequences: A163375 A163376 A163377 * A163379 A163380 A163381`
	KEYWORD	`nonn`
	AUTHOR	`Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Jul 25 2009`

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Last modified February 14 16:10 EST 2012. Contains 205635 sequences.