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A125979 Signature-permutation of a Catalan automorphism: composition of A125976 and A057164. 1
0, 1, 3, 2, 8, 5, 6, 7, 4, 22, 13, 15, 18, 10, 19, 11, 20, 21, 12, 14, 16, 17, 9, 64, 36, 41, 50, 27, 52, 29, 55, 59, 32, 38, 43, 46, 24, 60, 33, 39, 47, 25, 61, 34, 62, 63, 35, 40, 48, 49, 26, 51, 28, 53, 56, 30, 54, 57, 58, 31, 37, 42, 44, 45, 23, 196, 106, 120, 148, 78 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
This is self-inverse permutation (involution) of the nonnegative integers.
LINKS
CROSSREFS
a(n) = A125976(A057164(n)) = A057164(A125976(n)). Differs from A071663 for the first time at n=43, where a(n)=34, while A071663(n)=48.
Sequence in context: A085178 A146942 A126313 * A071663 A071664 A130921
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jan 02 2007
STATUS
approved

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Last modified June 15 03:12 EDT 2024. Contains 373402 sequences. (Running on oeis4.)