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A056868
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Numbers which are not nilpotent numbers.
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11
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6, 10, 12, 14, 18, 20, 21, 22, 24, 26, 28, 30, 34, 36, 38, 39, 40, 42, 44, 46, 48, 50, 52, 54, 55, 56, 57, 58, 60, 62, 63, 66, 68, 70, 72, 74, 75, 76, 78, 80, 82, 84, 86, 88, 90, 92, 93, 94, 96, 98, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 116, 117, 118, 120
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| This comment is about the 4 sequences A001034, A060793, A056866, A056868: The Feit Thompson theorem says that a finite group with odd order is solvable, hence apart from the first trivial term of A060793 all the other numbers in these sequences are even. - Ahmed Fares (ahmedfares(AT)my-deja.com), May 08 2001
A number is nilpotent if every group of order n is nilpotent.
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..1000
J. Pakianathan and K. Shankar, Nilpotent Numbers, Amer. Math. Monthly, 107, August-September 2000, 631-634.
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CROSSREFS
| Cf. A003277, A051532, A056866. Complement of A056867.
Sequence in context: A050703 A135711 A161543 * A069209 A060702 A054741
Adjacent sequences: A056865 A056866 A056867 * A056869 A056870 A056871
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KEYWORD
| nonn,nice,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Sep 02 2000
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EXTENSIONS
| More terms from Francisco Salinas (franciscodesalinas(AT)hotmail.com), Dec 25 2001
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