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Search: id:A115600
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| A115600 |
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a(n) = numerator of b(n), where b(1) = 1, b(n+1) = sum{k=1 to n} b(k)^((-1)^(n-k)). |
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4
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| 1, 1, 2, 4, 13, 43, 905, 15790, 92494147, 47283340087, 8845558976879378539, 2707131569835749037213946965347, 2980435288285565929467276114849756995199455683357
(list; graph; listen)
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