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A289821
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Primes of the form k!3-729, where k!3 is the triple factorial number (A007661).
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1
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151, 2504901671, 664565853951271, 3091650738175271, 26582634158079271, 126757680265215271, 142299187144047333874073599271, 546216992715109618958387336810111087297326406997164406744285183999999999271
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
Select[Table[MultiFactorial[i, 3] - 729, {i, 11, 100}], PrimeQ[#]&]
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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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