id:A009478 - OEIS Search Results

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Expansion of sin(sin(x)).x.

+0
2

0, 2, -8, 72, -1024, 18720, -451200, 13870976, -517341184, 22907884032, -1190546278400, 71557772290048, -4904509780131840, 379465209995010048, -32882543112668741632, 3167852772782079836160, -336982188500401608720384 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Sin[ Sin[ x ] ]x ( Even Part *)`
	CROSSREFS	`Equals 2 * A024253(n).` `Sequence in context: A062733 A026739 A060635 this_sequence A038057 A005615 A107270` `Adjacent sequences: A009475 A009476 A009477 this_sequence A009479 A009480 A009481`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research