A125979 Signature-permutation of a Catalan automorphism: composition of A125976 and A057164.

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

Offset

0,3

Comments

This is self-inverse permutation (involution) of the nonnegative integers.

Links

Table of n, a(n) for n=0..69.

Index entries for signature-permutations of Catalan automorphisms

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

Adjacent sequences: A125976 A125977 A125978 * A125980 A125981 A125982

Keyword

nonn

Author

Antti Karttunen, Jan 02 2007

Status

approved