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A015867
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Numbers n such that sigma(n) = sigma(n + 7).
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14
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10, 62, 188, 362, 759, 1178, 1214, 1431, 1442, 1598, 1695, 1748, 2235, 3495, 6699, 9338, 9945, 11438, 13695, 18795, 20727, 26199, 26631, 30548, 35438, 53751, 79826, 79827, 89378, 103887, 114231, 122738, 132111, 135506, 138135
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 62, p. 22, Ellipses, Paris 2008.
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CROSSREFS
| Cf. A002961, A007373, A015861, A015863, A015865, A015866, A015876, A015877, A015880, A015881, A015882, A015883, A181647. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 03 2010]
Sequence in context: A041184 A089034 A025574 * A106629 A196632 A027254
Adjacent sequences: A015864 A015865 A015866 * A015868 A015869 A015870
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KEYWORD
| nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com)
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