id:A029584 - OEIS Search Results

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Expansion of cos x + tan x + sec x.

+0
2

2, 1, 0, 2, 6, 16, 60, 272, 1386, 7936, 50520, 353792, 2702766, 22368256, 199360980, 1903757312, 19391512146, 209865342976, 2404879675440, 29088885112832, 370371188237526, 4951498053124096, 69348874393137900 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`a(2n) = 2*A012007(n), a(2n+1) = A000182(n+1).`
	CROSSREFS	`Sequence in context: A074142 A059084 A070677 this_sequence A136255 A127373 A050464` `Adjacent sequences: A029581 A029582 A029583 this_sequence A029585 A029586 A029587`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research