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A001728 Expansion of cos x / cos 4x. +0
2
1, 15, 1185, 230895, 83860545, 48942778575, 41893214676705, 49441928730798255, 76946148390480577665, 152682246738275154625935, 376229085883258481118811425, 1127131459348047116845576437615, 4034538627668651235506091915425985 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Bisection of A000813.

Adjacent sequences: A001725 A001726 A001727 this_sequence A001729 A001730 A001731

Sequence in context: A098210 A090213 A027492 this_sequence A059383 A098723 A120296

KEYWORD

nonn

AUTHOR

njas

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

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