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#15 by N. J. A. Sloane at Sun Aug 02 17:53:18 EDT 2015
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#14 by Antti Karttunen at Sun Aug 02 04:21:02 EDT 2015
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#13 by Antti Karttunen at Sun Aug 02 04:20:01 EDT 2015
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| COMMENTS
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a(n) tells which number in array A255551A255127 (constructed from LuckyLudic sieve) is at the same position where n is in array A255127A255551 (constructed from LudicLucky sieve). This permutation fixes all even numbers because both arrays have A005843 as their topmost row.
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#12 by Antti Karttunen at Sun Aug 02 04:09:09 EDT 2015
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| LINKS
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<a href="/index/Si#sieve">Index entries for sequences generated by sieves</a>
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#11 by Antti Karttunen at Sun Aug 02 04:06:57 EDT 2015
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#10 by Antti Karttunen at Sun Aug 02 03:52:01 EDT 2015
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| NAME
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Permutation mapping from Lucky sieve to Ludic sieve: a(1) = 1, for n > 1, : a(n) = A255127(A260438(n),), A260439(n)).
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| FORMULA
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a(2n) = 2n. [Fixes even numbers.].
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#9 by Antti Karttunen at Sun Aug 02 03:10:50 EDT 2015
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| NAME
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Permutation mapping from Lucky sieve to Ludic sieve.: a(1) = 1, for n > 1, a(n) = A255127(A260438(n),A260439(n)).
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| COMMENTS
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a(n) tells which number in array A255551 (constructed from Lucky sieve) is at the same position where n is in array A255127 (constructed from Ludic sieve). This permutation fixes all even numbers because both arrays have A005843 as their topmost row.
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| FORMULA
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a(2n) = 2n. [Fixes even numbers.]
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#8 by Antti Karttunen at Fri Jul 31 06:22:52 EDT 2015
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| LINKS
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<a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
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#7 by Antti Karttunen at Thu Jul 30 12:24:32 EDT 2015
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#6 by Antti Karttunen at Thu Jul 30 12:09:09 EDT 2015
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| LINKS
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Antti Karttunen, <a href="/A260435/b260435.txt">Table of n, a(n) for n = 1..10104</a>
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| FORMULA
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a(A000959(n+1)) = A003309(n+2).). [Maps Lucky numbers to odd Ludic numbers.]
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