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Search: id:A051139
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A051139 A000994-A000995. +0
3
1, 0, 0, 1, 3, 7, 19, 64, 236, 893, 3489, 14347, 62429, 285580, 1362372, 6749337, 34683211, 184774851, 1019351071, 5813020060, 34206071992, 207391313189, 1294092695729, 8302365433863, 54713262186745, 370027343460584, 2565874205681368 (list; graph; listen)
OFFSET

0,5

FORMULA

For recurrence see A000994 and A000995.

EXAMPLE

a(7) = 359-295 = 64

CROSSREFS

Sequence in context: A148668 A148669 A160128 this_sequence A049423 A066237 A135741

Adjacent sequences: A051136 A051137 A051138 this_sequence A051140 A051141 A051142

KEYWORD

nonn,easy,eigen,nice

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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