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A015877
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Numbers n such that sigma(n) = sigma(n + 9).
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13
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14, 16, 46, 446, 1146, 26766, 35805, 143605, 179086, 185946, 437745, 1187725, 1194646, 1327086, 1746946, 2201806, 2893605, 3003385, 3574725, 3730125, 4053586, 4928385, 5715325, 6220305, 7507946, 9423645, 9897186
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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CROSSREFS
| Cf. A002961, A007373, A015861, A015863, A015865, A015866, A015867, A015876, A015880, A015881, A015882, A015883, A181647. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 03 2010]
Sequence in context: A163629 A175887 A067844 * A192290 A152010 A046085
Adjacent sequences: A015874 A015875 A015876 * A015878 A015879 A015880
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KEYWORD
| nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com)
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