id:A162922 - OEIS Search Results

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Square array read by antidiagonals: m is the a(n,m)th positive integer among those which are coprime to n. Or a(n,m) = 0 if m and n are not coprime.

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1, 1, 2, 1, 0, 3, 1, 2, 2, 4, 1, 0, 0, 0, 5, 1, 2, 2, 3, 3, 6, 1, 0, 3, 0, 4, 0, 7, 1, 2, 0, 4, 3, 0, 4, 8, 1, 0, 3, 0, 0, 0, 5, 0, 9 (list; table; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`Rows 1 through 7 of the array:` `n=1: 1,2,3,4,5,6,7,8,9,...` `n=2: 1,0,2,0,3,0,4,0,5,...` `n=3: 1,2,0,3,4,0,5,6,0,...` `n=4: 1,0,2,0,3,0,4,0,5,...` `n=5: 1,2,3,4,0,5,6,7,8,...` `n=6: 1,0,0,0,2,0,3,0,0,...` `n=7: 1,2,3,4,5,6,0,7,8,...`
	CROSSREFS	`Sequence in context: A127093 A141543 A146540 this_sequence A102057 A157497 A131358` `Adjacent sequences: A162919 A162920 A162921 this_sequence A162923 A162924 A162925`
	KEYWORD	`more,nonn,tabl`
	AUTHOR	`Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Jul 17 2009`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

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