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Search: id:A097889
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| A097889 |
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Numbers that are products of (at least two) consecutive primes. |
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+0
2
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| 6, 15, 30, 35, 77, 105, 143, 210, 221, 323, 385, 437, 667, 899, 1001, 1147, 1155, 1517, 1763, 2021, 2310, 2431, 2491, 3127, 3599, 4087, 4199, 4757, 5005, 5183, 5767, 6557, 7387, 7429, 8633, 9797, 10403, 11021, 11663, 12317, 12673, 15015, 17017, 20677
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Subsequence of A073485; A073490(a(n)) = 0. - Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Nov 20 2004
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EXAMPLE
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E.g. 1001 = 7 * 11 * 13
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MATHEMATICA
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a = {}; Do[ AppendTo[a, Apply[ Times, (Prime /@ Partition[ Range[30], n, i]), 1]], {n, 2, 6}, {i, n - 1}]; Take[ Union[ Flatten[ a]], 45] (from Robert G. Wilson v Sep 24 2004)
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CROSSREFS
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Union of A006094, A046301, A046302, A046303, A046324, A046325, A046326, A046327, etc.
Sequence in context: A025212 A024972 A048749 this_sequence A024802 A011886 A056497
Adjacent sequences: A097886 A097887 A097888 this_sequence A097890 A097891 A097892
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KEYWORD
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nonn,easy
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AUTHOR
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Bart la Bastide (bart(AT)xs4all.nl), Sep 21 2004
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 24 2004
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