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A081016
(Lucas(4n+3)+1)/5, or Fibonacci(2n+1)*Fibonacci(2n+2), or
A081015
/5.
+0
6
1, 6, 40, 273, 1870, 12816, 87841, 602070, 4126648, 28284465, 193864606, 1328767776, 9107509825, 62423800998, 427859097160, 2932589879121, 20100270056686, 137769300517680, 944284833567073, 6472224534451830
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
AT&T Labs Research
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