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A088122
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Let f(n,x) = 1 + 2x + 3x^2 + 5x^3 + 7x^4 + ... + prime(n)*x^n; a(n) = smallest prime f(n,x), or 0 if no such prime exists.
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4
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3, 17, 11, 10273, 29, 702337, 59, 358218449, 101, 144343444402281177689, 13269388801, 93810335233, 239, 1305289, 214201115363366099, 7339592775850735791497954599833793, 809672944130045028361241, 6177516768446306373088541231324219761, 569
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(4) = 10273. For x = 1,2,3,4,5 f(4,x) is composite. f(4,6) = 10273.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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