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Search: id:A144798
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| A144798 |
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Integers having ideal digital mean to base 3. |
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+0
7
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| 38, 42, 56, 139, 141, 147, 153, 169, 177, 195, 201, 225, 542, 558, 572, 598, 604, 654, 666, 678, 684, 779, 781, 803, 805, 835, 899, 905, 913, 929, 2079, 2107, 2109, 2266, 2390, 2396, 2410, 2418, 2424, 2474, 2482, 2506, 2508, 2536, 2606, 2614, 2638, 2650
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Subset of A031443.
These numbers have digital mean dm(b, n) = sigma(i in [1, d]: d_i * 2 - (b - 1)) / (2 * d) = 0, where d is the number of digits in the base b representation of n and d_i the individual digits, for b in [2, 3].
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CROSSREFS
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Cf. A007953, A008591, A031443, A144777
Sequence in context: A056027 A072585 A050874 this_sequence A066473 A031409 A078550
Adjacent sequences: A144795 A144796 A144797 this_sequence A144799 A144800 A144801
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KEYWORD
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base,easy,nonn
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AUTHOR
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Reikku Kulon (reikku(AT)gmail.com), Sep 21 2008
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EXTENSIONS
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Added accidentally omitted terms. Reikku Kulon (reikku(AT)gmail.com), Sep 24 2008
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