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A134837
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Composite numbers where the sum of the smallest prime factor and the largest prime factor is an odd composite.
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0
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14, 26, 28, 38, 42, 46, 52, 56, 62, 70, 74, 76, 78, 84, 86, 92, 94, 98, 104, 106, 112, 114, 122, 124, 126, 130, 134, 138, 140, 146, 148, 152, 156, 158, 166, 168, 172, 178, 182, 184, 186, 188, 190, 194, 196, 206, 208, 210, 212, 218, 222, 224, 226, 228, 230, 234
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| 14 is in the sequence as 14=2*7 and 2+7=9, an odd composite; 60 is not, as 60=2^2*3*5 and 2+5 is 7, not composite.
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CROSSREFS
| Cf. A002808.
Sequence in context: A199405 A030786 A094163 * A105583 A005277 A079702
Adjacent sequences: A134834 A134835 A134836 * A134838 A134839 A134840
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KEYWORD
| nonn
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AUTHOR
| Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 04 2009
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EXTENSIONS
| Definition and examples simplified by D. S. McNeil (mcneil(AT)hku.hk), Dec 10 2009
Corrected and extended by D. S. McNeil (mcneil(AT)hku.hk), Dec 10 2009
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