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Search: id:A068072
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| A068072 |
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Number of Pluperfect Digital Invariants base n. |
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+0
1
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| 1, 5, 11, 17, 30, 59, 62, 58, 88, 134, 87, 201, 103, 202, 293
(list; graph; listen)
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OFFSET
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2,2
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REFERENCES
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Lionel E. Deimel and Michael T. Jones: Finding Pluperfect Digital Invariants: Techniques, Results and Observations, Journal of Recreational Mathematics 14, 1981-82, pp. 87-107.
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LINKS
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Walter Schneider, Perfect Digital Invariants
Dik T. Winter, Table of Armstrong Numbers
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CROSSREFS
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Cf. A016087.
Sequence in context: A046135 A162336 A074267 this_sequence A136292 A088046 A155882
Adjacent sequences: A068069 A068070 A068071 this_sequence A068073 A068074 A068075
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KEYWORD
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base,hard,more,nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 28 2002
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