OFFSET
0,3
COMMENTS
The signature-permutation of the Catalan automorphism which is derived from the third non-recursive Catalan automorphism *A089850 with recursion schema SPINE (see A122203 for the definition). This automorphism is also produced when automorphism *A069767 is applied to the right-hand side subtree of the given binary tree, with the left side left intact.
LINKS
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jun 05 2007
STATUS
approved