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Search: id:A001566
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| A001566 |
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a(0) = 3; thereafter, a(n) = a(n-1)^2 - 2.
(Formerly M2705 N1084)
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+0
23
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| 3, 7, 47, 2207, 4870847, 23725150497407, 562882766124611619513723647, 316837008400094222150776738483768236006420971486980607
(list; graph; listen)
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