A128499 - OEIS

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A128499

Fifth column (m=4) of triangle A128494.

1, 1, -4, -4, 11, 11, -24, -24, 46, 46, -80, -80, 130, 130, -200, -200, 295, 295, -420, -420, 581, 581, -784, -784, 1036, 1036, -1344, -1344, 1716, 1716, -2160, -2160, 2685, 2685, -3300, -3300, 4015, 4015, -4840, -4840, 5786, 5786, -6864, -6864, 8086, 8086, -9464, -9464, 11011, 11011, -12740 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	COMMENTS	`Unsigned, this is the repeated sequence A001752.`
	FORMULA	`G.f.: 1/((1+x)(1-x)^5).` `a(2k)= a(2k+1)= ((-1)^k)A001752(n), k>=0.`
	CROSSREFS	`Cf. A128498 (column m=3).` `Sequence in context: A180498 A107856 A168373 * A048223 A014012 A178182` `Adjacent sequences: A128496 A128497 A128498 * A128500 A128501 A128502`
	KEYWORD	`sign,easy`
	AUTHOR	`Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de) Apr 04 2007`

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Last modified February 16 01:56 EST 2012. Contains 205860 sequences.