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A000324
A nonlinear recurrence: a(n) = a(n-1)^2-4*a(n-1)+4 (for n>1).
(Formerly M3789 N1544)
+0
4
1, 5, 9, 49, 2209, 4870849, 23725150497409, 562882766124611619513723649, 316837008400094222150776738483768236006420971486980609
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.
AT&T Labs Research
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