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A015883
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Numbers n such that sigma(n) = sigma(n + 13).
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13
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182, 782, 1965, 2486, 2678, 2685, 12141, 12441, 17342, 21242, 27686, 34905, 35505, 35853, 38662, 38985, 56732, 63578, 104342, 109461, 192933, 198909, 222122, 236966, 245349, 251654, 256322, 261885, 262238, 324441, 333909
(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 182, p. 56, Ellipses, Paris 2008.
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CROSSREFS
| Cf. A002961, A007373, A015861, A015863, A015865, A015866, A015867, A015876, A015877, A015880, A015881, A015882, A181647. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 03 2010]
Sequence in context: A145297 A056091 A158553 * A043463 A047636 A157205
Adjacent sequences: A015880 A015881 A015882 * A015884 A015885 A015886
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KEYWORD
| nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com)
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EXTENSIONS
| Corrected by T. D. Noe (noe(AT)sspectra.com), Oct 31 2006
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