login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A123493
Signature permutation of a Catalan automorphism: row 79361 of table A122201.
6
0, 1, 2, 3, 4, 8, 6, 7, 5, 9, 13, 20, 21, 18, 14, 19, 16, 17, 22, 15, 11, 12, 10, 23, 27, 34, 35, 32, 54, 61, 57, 58, 64, 55, 48, 49, 46, 37, 41, 53, 56, 47, 42, 51, 44, 45, 50, 60, 62, 63, 59, 43, 52, 39, 28, 33, 40, 30, 31, 36, 38, 29, 25, 26, 24, 65, 69, 76, 77, 74, 96
OFFSET
0,3
COMMENTS
This is the signature-permutation of Catalan automorphism which is derived from nonrecursive Catalan automorphism *A123492 with the recursion schema FORK (defined in A122201). See further comments at A123494.
PROG
(Scheme function, destructive implementation of this automorphism acting on S-expressions:) (define *A123493! (!FORK *A123492!))
CROSSREFS
Inverse: A123494. Row 79361 of A122201.
Sequence in context: A353827 A353826 A123492 * A123715 A082313 A123494
KEYWORD
nonn
AUTHOR
Antti Karttunen, Oct 11 2006
STATUS
approved