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Search: id:A145645
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| A145645 |
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Numbers n such that (binary weight of n)/(length of binary representation of n) equals 1/3. |
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+0
1
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| 4, 33, 34, 36, 40, 48, 259, 261, 262, 265, 266, 268, 273, 274, 276, 280, 289, 290, 292, 296, 304, 321, 322, 324, 328, 336, 352, 385, 386, 388, 392, 400, 416, 448
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Generalised sequences are of the form A000120(n)/A070939(n)=c. For c = 1 we have A000225, for c = 1/2 we have A031443. The number c=p/q, p is from (1;q>. All sequences of this type shows the same kind of "flocking" behaviour.
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CROSSREFS
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Cf. A000120, A070939, A000523, A000225, A031443
Sequence in context: A027639 A117620 A059904 this_sequence A042831 A092207 A133630
Adjacent sequences: A145642 A145643 A145644 this_sequence A145646 A145647 A145648
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KEYWORD
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base,easy,nonn
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AUTHOR
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Ctibor O. Zizka (c.zizka(AT)email.cz), Oct 15 2008
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