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 A086964 a(A086957(n))=A086958(n), a(A086958(n))=A086957(n), a(A086959(n))=A086959(n), see A086956. 4
 2, 1, 3, 6, 10, 4, 14, 8, 12, 5, 22, 9, 26, 7, 15, 20, 34, 30, 38, 16, 21, 11, 46, 24, 25, 13, 45, 42, 58, 18, 62, 40, 33, 17, 245, 36, 74, 19, 39, 32, 82, 28, 86, 66, 27, 23, 94, 48, 98, 60, 51, 78, 106, 54, 110, 56, 57, 29, 118, 50, 122, 31, 147, 80, 130, 44, 134 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A self-inverse permutation of natural numbers: a(a(n))=n; a(n) = A086962(A086963(n)) = A086963(A086962(n)). LINKS CROSSREFS Cf. A086572, A086571. Sequence in context: A294284 A295678 A057925 * A076242 A066203 A024866 Adjacent sequences:  A086961 A086962 A086963 * A086965 A086966 A086967 KEYWORD nonn AUTHOR Reinhard Zumkeller, Jul 25 2003 STATUS approved

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Last modified January 20 02:13 EST 2019. Contains 319320 sequences. (Running on oeis4.)