id:A079549 - OEIS Search Results

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Array T(m,n) = m*phi(n) - phi(mn) (m,n >= 1), read by antidiagonals.

+0
4

0, 1, 0, 1, 0, 0, 2, 1, 2, 0, 1, 0, 0, 0, 0, 4, 1, 4, 2, 4, 0, 1, 2, 2, 0, 4, 0, 0, 4, 1, 6, 2, 8, 0, 6, 0, 3, 0, 2, 4, 0, 0, 6, 0, 0, 6, 3, 8, 2, 16, 2, 12, 4, 6, 0, 1, 2, 0, 0, 4, 0, 6, 0, 0, 0, 0, 8, 1, 12, 6, 16, 2, 24, 4, 12, 4, 10, 0, 1, 4, 2, 4, 12, 0, 0, 8, 6, 0, 10, 0, 0, 8, 1, 12, 2, 20, 0, 24, 4, 18 (list; table; graph; listen)

	OFFSET	`1,7`
	COMMENT	`It follows from the definition that m*phi(n) - phi(mn) >= 0.`
	REFERENCES	`D. S. Mitrinovic et al., Handbook of Number Theory, Kluwer, p. 9.`
	CROSSREFS	`Cf. A000010, A076953, A079548, A079550.` `Sequence in context: A029391 A098356 A082995 this_sequence A070088 A131851 A104886` `Adjacent sequences: A079546 A079547 A079548 this_sequence A079550 A079551 A079552`
	KEYWORD	`nonn,tabl`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Jan 24 2003`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

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