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A289820
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Primes of the form k!3-243, where k!3 is the triple factorial number (A007661).
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1
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37, 1106317, 17041023757, 13106744139423334399757, 111788986826349170054555238399757, 254451773522587035734629406212095999757, 12931890526958090978845347074978621685759999757, 23265085063150097152411131624511949388385310979653631999999757
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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] - 243, {i, 10, 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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