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 A234751 Self-inverse permutation of integers induced by the restriction of blue-code to irreducible polynomials over GF(2): a(n) = A091227(A193231(A014580(n))). 5
 2, 1, 3, 5, 4, 6, 8, 7, 12, 14, 13, 9, 11, 10, 17, 18, 15, 16, 20, 19, 21, 23, 22, 41, 39, 40, 38, 37, 34, 33, 35, 36, 30, 29, 31, 32, 28, 27, 25, 26, 24, 43, 42, 47, 46, 45, 44, 49, 48, 51, 50, 52, 54, 53, 55, 71, 69, 70, 68, 65, 64, 67, 66, 61, 60, 63, 62, 59, 57, 58, 56 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS This permutation is also induced when A234747 is restricted to primes: a(n) = A000720(A234747(A000040(n))) because of the way how A234747 has been defined. Note that each subsequence a(1)..a(A062692(j)) is closed (i.e., no cycles are leaking out) because blue code (A193231) preserves the degree of polynomials over GF(2) it operates upon. LINKS Antti Karttunen, Table of n, a(n) for n = 1..2538 FORMULA a(n) = A091227(A234750(n)) = A091227(A193231(A014580(n))). PROG (Scheme) (define (A234751 n) (A091227 (A234750 n))) CROSSREFS Cf. A014580, A062692, A193231, A234747, A234750. Sequence in context: A256210 A256371 A064429 * A113790 A181094 A282666 Adjacent sequences:  A234748 A234749 A234750 * A234752 A234753 A234754 KEYWORD nonn AUTHOR Antti Karttunen, Feb 12 2014 STATUS approved

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Last modified November 26 23:41 EST 2020. Contains 338670 sequences. (Running on oeis4.)