id:A165661 - OEIS Search Results

Search: id:A165661

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Triangle read by rows: denominator of n/binomial(n,m).

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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 5, 10, 5, 1, 1, 1, 1, 3, 5, 5, 3, 1, 1, 1, 1, 7, 7, 35, 7, 7, 1, 1, 1, 1, 4, 28, 14, 14, 28, 4, 1, 1, 1, 1, 9, 12, 21, 126, 21, 12, 9, 1, 1, 1, 1, 5, 15, 30, 42, 42, 30, 15, 5, 1, 1, 1, 1, 11, 55, 165, 66, 77, 66, 165, 55, 11, 1, 1 (list; table; graph; listen)

	OFFSET	`0,13`
	COMMENT	`First difference from A107711 is at T(10,4) = 21 instead of 42.`
	FORMULA	`T(n,m) = binomial(n,m)/gcd(n,binomial(n,m)).`
	CROSSREFS	`Cf. A159335 (numerators), A107711, A007318, A109004.` `Sequence in context: A143811 A109673 A023591 this_sequence A107711 A061893 A078530` `Adjacent sequences: A165658 A165659 A165660 this_sequence A165662 A165663 A165664`
	KEYWORD	`frac,nonn,tabl`
	AUTHOR	`Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Sep 24 2009`

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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.

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