A123718 Signature permutation of a Catalan automorphism: row 253 of table A122204.

0, 1, 2, 3, 4, 6, 5, 8, 7, 9, 14, 10, 19, 16, 11, 15, 12, 21, 22, 13, 20, 17, 18, 23, 37, 24, 51, 42, 25, 38, 26, 56, 60, 27, 53, 44, 47, 28, 39, 29, 52, 43, 30, 40, 31, 58, 59, 32, 62, 63, 64, 33, 41, 34, 57, 61, 35, 54, 45, 46, 36, 55, 48, 49, 50, 65, 107, 66, 149, 121, 67

Offset

0,3

Comments

This is the signature-permutation of Catalan automorphism which is derived from nonrecursive Catalan automorphism *A123503 with the recursion schema ENIPS (defined in A122204). See the comments at A123717.

Links

Table of n, a(n) for n=0..70.

Index entries for signature-permutations of Catalan automorphisms

Prog

(Scheme function, destructive implementation of this automorphism acting on S-expressions:) (define *A123718! (!ENIPS *A123503!))

Crossrefs

Inverse: A123717. a(n) = A089854(A057510(n)). Row 253 of A122204.

Sequence in context: A083179 A123503 A123717 * A335430 A121878 A167905

Adjacent sequences: A123715 A123716 A123717 * A123719 A123720 A123721

Keyword

nonn

Author

Antti Karttunen, Oct 11 2006

Status

approved