A129608 Signature-permutation of a Catalan automorphism: swap the two rightmost subtrees of general trees.

0, 1, 2, 3, 4, 6, 5, 7, 8, 9, 11, 10, 16, 19, 14, 15, 12, 17, 18, 13, 20, 21, 22, 23, 25, 24, 30, 33, 28, 29, 26, 44, 47, 27, 53, 56, 60, 37, 39, 38, 43, 52, 42, 40, 31, 45, 46, 32, 48, 49, 50, 51, 41, 34, 54, 55, 35, 57, 58, 59, 36, 61, 62, 63, 64, 65, 67, 66, 72, 75, 70, 71

Offset

0,3

Comments

This self-inverse automorphism is obtained as either SPINE(*A129607) or ENIPS(*A129607). See the definitions given in A122203 and A122204.

Links

A. Karttunen, Table of n, a(n) for n = 0..2055

Index entries for signature-permutations of Catalan automorphisms

Crossrefs

A129608. a(n) = A057508(A072796(A057508(n))) = A057164(A072796(A057164(n))). Row 3608 of A122203 and A122204.

Sequence in context: A122363 A122364 A122300 * A130373 A121731 A244322

Adjacent sequences: A129605 A129606 A129607 * A129609 A129610 A129611

Keyword

nonn

Author

Antti Karttunen, May 22 2007

Status

approved