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 A260436 Permutation mapping from Ludic sieve to Lucky sieve: a(1) = 1, for n > 1: a(n) = A255551(A260738(n), A260739(n)). 7
 1, 2, 3, 4, 7, 6, 9, 8, 5, 10, 13, 12, 15, 14, 11, 16, 21, 18, 19, 20, 17, 22, 25, 24, 31, 26, 23, 28, 33, 30, 27, 32, 29, 34, 39, 36, 37, 38, 35, 40, 43, 42, 49, 44, 41, 46, 51, 48, 61, 50, 47, 52, 63, 54, 45, 56, 53, 58, 57, 60, 67, 62, 59, 64, 81, 66, 69, 68, 65, 70, 73, 72, 55, 74, 71, 76, 75, 78, 103, 80, 77, 82, 79, 84, 91, 86, 83, 88 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS 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. LINKS Antti Karttunen, Table of n, a(n) for n = 1..10105 FORMULA Other identities. For all n >= 1: a(A003309(n+2)) = A000959(n+1). [Maps odd Ludic numbers to Lucky numbers.] a(2n) = 2n. As a composition of related permutations: a(n) = A255551(A255128(n)). a(n) = A255553(A255408(n)). PROG (Scheme) (define (A260436 n) (if (<= n 1) n (A255551bi (A260738 n) (A260739 n)))) ;; Code for A255551bi given in A255551. CROSSREFS Inverse: A260435. Cf. A000959, A003309, A255551, A260738, A260739. Similar permutations: A255408, A255128, A255551, A255553, A249817, A249818, A260742 (a more recursed variant). Sequence in context: A247798 A130685 A210202 * A255553 A260742 A265228 Adjacent sequences:  A260433 A260434 A260435 * A260437 A260438 A260439 KEYWORD nonn AUTHOR Antti Karttunen, Jul 30 2015 STATUS approved

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Last modified January 27 10:00 EST 2022. Contains 350607 sequences. (Running on oeis4.)