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A289289
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a(n) = A005259(n) mod (n+1)^3.
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1
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0, 5, 19, 37, 1, 149, 1, 165, 559, 5, 1, 1373, 1, 5, 2698, 2725, 1, 581, 1, 2445, 3160, 5, 1, 8285, 1751, 5, 15139, 9677, 1, 18005, 1, 31397, 16045, 5, 13450, 2669, 1, 5, 52801, 20365, 1, 20501, 1, 65333, 59425, 5, 1, 86621, 48707, 99005, 59029, 54173, 1, 99725
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OFFSET
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0,2
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LINKS
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FORMULA
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If m = n + 1 is a prime and m >= 5, a(n) = 1.
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PROG
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(PARI) a(n) = sum(k=0, n, (binomial(n, k)*binomial(n+k, k))^2) % (n+1)^3; \\ Michel Marcus, Jul 02 2017
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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