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A123718 Signature permutation of a Catalan automorphism: row 253 of table A122204. 4
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 (list; graph; refs; listen; history; text; internal format)
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 * A121878 A167905 A285039

Adjacent sequences:  A123715 A123716 A123717 * A123719 A123720 A123721

KEYWORD

nonn

AUTHOR

Antti Karttunen, Oct 11 2006

STATUS

approved

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Last modified January 22 16:25 EST 2020. Contains 331152 sequences. (Running on oeis4.)