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 A234613 Self-inverse permutation of nonnegative integers, "gray-blue" code: a(n) = A193231(A003188(n)). 3
 0, 1, 2, 3, 6, 7, 4, 5, 10, 11, 8, 9, 12, 13, 14, 15, 30, 31, 28, 29, 24, 25, 26, 27, 20, 21, 22, 23, 18, 19, 16, 17, 34, 35, 32, 33, 36, 37, 38, 39, 40, 41, 42, 43, 46, 47, 44, 45, 60, 61, 62, 63, 58, 59, 56, 57, 54, 55, 52, 53, 48, 49, 50, 51, 102, 103, 100 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Antti Karttunen, Table of n, a(n) for n = 0..8191 Joerg Arndt, Matters Computational (The Fxtbook), section 1.19 "Invertible transforms on words", pp. 49--55 [Cf. especially the identity 1.19-9d: gB = Bg^{-1} given on page 53]. FORMULA a(n) = A193231(A003188(n)). a(n) = A006068(A193231(n)). a(n) = A193231(A234612(A193231(n))). PROG (Scheme) (define (A234613 n) (A193231 (A003188 n))) (define (A234613v2 n) (A006068 (A193231 n))) ;; Alternative two. CROSSREFS Cf. A003188, A006068, A193231, A234612, A234024-A234027. Sequence in context: A114462 A308511 A169746 * A258996 A092569 A191726 Adjacent sequences:  A234610 A234611 A234612 * A234614 A234615 A234616 KEYWORD nonn AUTHOR Antti Karttunen, Dec 28 2013 STATUS approved

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Last modified August 6 19:52 EDT 2020. Contains 336256 sequences. (Running on oeis4.)