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Search: id:A097261
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| A097261 |
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Numbers whose set of base 15 digits is {0,E}, where E base 15 = 14 base 10. |
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+0
3
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| 0, 14, 210, 224, 3150, 3164, 3360, 3374, 47250, 47264, 47460, 47474, 50400, 50414, 50610, 50624, 708750, 708764, 708960, 708974, 711900, 711914, 712110, 712124, 756000, 756014, 756210, 756224, 759150, 759164, 759360, 759374, 10631250
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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n such that there exists a permutation p_1, ..., p_n of 1, ..., n such that i + p_i is a power of 15 for every i.
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FORMULA
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a(n) = 14*A033051(n).
a(2n) = 15*a(n), a(2n+1) = a(2n)+14.
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CROSSREFS
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Cf. A001196, A005823, A097251-A097262.
Sequence in context: A002961 A063071 A160682 this_sequence A158555 A097183 A004369
Adjacent sequences: A097258 A097259 A097260 this_sequence A097262 A097263 A097264
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KEYWORD
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nonn,base
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AUTHOR
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Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 3 2004
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