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A185042
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Initial term of first run of exactly n consecutive numbers with 4 distinct prime factors.
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1
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210, 7314, 37960, 134043, 357642, 2713332, 1217250, 14273478, 44939642, 76067298, 163459742, 547163235, 2081479430, 2771263512, 11715712410, 17911205580, 56608713884, 203594236366, 118968284928
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OFFSET
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1,1
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COMMENTS
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The number of distinct prime factors is A001221.
a(23) = 585927201062; a(n) > 10^13 for n = 20, 21, 22, and n >= 24, if they exist.
Eggleton and MacDougall show that there are no more than 419 terms in this sequence.
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LINKS
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EXAMPLE
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a(6) > a(7) because the first run of 6 consecutive integers i with A001221(i)=4 is not maximal.
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CROSSREFS
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KEYWORD
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nonn,fini,more
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AUTHOR
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STATUS
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approved
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