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Search: id:A016087
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| A016087 |
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First nontrivial or multidigital Armstrong number to base n. |
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+0
2
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| 5, 28, 13, 99, 10, 20, 41, 153, 61, 29, 17, 244, 113, 342, 40, 80, 181, 2413, 26, 97, 53, 11080, 313, 5425, 90, 180, 421, 68, 37, 205, 109, 356, 613, 5489, 160, 85, 761, 10413, 261, 353, 50, 637, 1013, 292, 104, 500, 1201, 1025, 1301, 541, 281, 127295, 178
(list; graph; listen)
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OFFSET
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3,1
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COMMENT
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Also called narcissistic numbers or pluperfect digital invariants.
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LINKS
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Dik T. Winter, Armstrong numbers
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MATHEMATICA
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Do[k = n + 1; While[l = IntegerDigits[k, n]; Apply[ Plus, l^Length[l]] != k, k++ ]; Print[k], {n, 3, 75} ]
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CROSSREFS
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Cf. A005188.
Sequence in context: A063860 A000878 A052470 this_sequence A106679 A063140 A088727
Adjacent sequences: A016084 A016085 A016086 this_sequence A016088 A016089 A016090
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KEYWORD
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nonn,easy,base
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com)
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EXTENSIONS
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Edited and extended by Robert G. Wilson v (rgwv(AT)rgwv.com) Feb 28 2002
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