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A050695
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Composite numbers n such that none of the prime factors of n is a substring of n.
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6
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4, 6, 8, 9, 10, 14, 16, 18, 21, 27, 34, 38, 40, 44, 46, 48, 49, 51, 54, 56, 57, 58, 60, 64, 66, 68, 69, 74, 76, 78, 80, 81, 84, 86, 87, 88, 90, 91, 94, 96, 98, 99, 100, 104, 106, 108, 111, 114, 116, 117, 118, 119, 121, 129, 133, 134, 136, 140, 141, 143, 144, 146
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| A131929(a(n)) = 0; together with 1, complement of A131930. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 30 2007
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LINKS
| R. Zumkeller, Table of n, a(n) for n = 1..10000
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EXAMPLE
| E.g. 114 = 2.3.19.
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CROSSREFS
| Cf. A050694, A050696, A035139, A050698.
Sequence in context: A180366 A164702 A001745 * A035139 A062115 A141613
Adjacent sequences: A050692 A050693 A050694 * A050696 A050697 A050698
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KEYWORD
| nonn,base,nice
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1999.
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