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A096076
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Not the sum of two relatively prime composite numbers.
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4
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1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 26, 27, 28, 30, 32, 36, 38, 40, 42, 45, 48, 50, 54, 56, 60, 66, 70, 72, 78, 80, 84, 90, 96, 105, 108, 110, 120, 126, 132, 138, 140, 150, 180, 210
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Max Alekseyev (maxale(AT)gmail.com) showed that this sequence is finite; proof completed by several people to show that the list is complete.
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EXAMPLE
| 13 is not in the set because 13 = 4 + 9. 15 = 6 + 9 does not prevent 15 from being in the set because gcd(6,9) = 3.
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CROSSREFS
| Sequence in context: A051038 A140332 A155182 * A108864 A055722 A028830
Adjacent sequences: A096073 A096074 A096075 * A096077 A096078 A096079
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KEYWORD
| nonn,fini,full
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AUTHOR
| Frank Adams-Watters (FrankTAW(AT)Netscape.net), Jul 22 2004
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