id:A142048 - OEIS Search Results

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A142048

Triangle of the denominators of the coefficients [x^k] P(n,x) defined in A141904.

+0
4

1, 3, 1, 5, 3, 1, 7, 45, 1, 1, 9, 105, 15, 3, 1, 11, 1575, 945, 15, 3, 1, 13, 10395, 175, 945, 9, 1, 1, 15, 315315, 17325, 14175, 189, 15, 3, 1, 17, 45045, 23648625, 7425, 2835, 189, 15, 3, 1, 19, 6891885, 1576575, 23648625, 93555, 945, 135, 45, 1, 1, 21, 72747675, 7309575 (list; table; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Are all the denominators odd?`
	CROSSREFS	`Cf. A141904 (numerators).` `Sequence in context: A159291 A122510 A102662 this_sequence A117563 A060439 A135224` `Adjacent sequences: A142045 A142046 A142047 this_sequence A142049 A142050 A142051`
	KEYWORD	`nonn,frac,tabl`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Sep 14 2008`
	EXTENSIONS	`Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 24 2009`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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