A Lucas Binet type sequence made from the roots of the Euler prime generating polynomial:(A005846) x^2+x+41 ; a=(-1-Sqrt[163]*i)/2; b=(-1+Sqrt[163]*i)/2; a(n)=a^n+b^n.
2, 1, 81, 122, 3199, 8201, 122958, 459199, 4582079, 23409238, 164456001
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Thu Feb 12 12:14:04 CET 2009 [seqfan] Sequence to A141530