A069766 Self-inverse permutation of natural numbers induced by the automorphism RotateHandshakes180 (A069771) or xReflectHandshakes (A069772) acting on the symmetric parenthesizations encoded by A061855.

0, 1, 2, 3, 5, 4, 6, 7, 11, 9, 10, 8, 12, 17, 14, 21, 19, 13, 20, 16, 18, 15, 22, 23, 37, 29, 33, 27, 41, 25, 39, 31, 32, 26, 40, 35, 36, 24, 38, 30, 34, 28, 42, 57, 47, 72, 64, 44, 68, 54, 61, 51, 76, 59, 49, 74, 66, 43, 67, 53, 60, 50, 75, 70, 46, 71, 56, 58, 48, 73, 63, 65

Offset

0,3

Links

Table of n, a(n) for n=0..71.

Index entries for sequences that are permutations of the natural numbers

Crossrefs

Cf. A061855, A069771, A069772.

Sequence in context: A121216 A132196 A153150 * A081241 A180201 A233277

Adjacent sequences: A069763 A069764 A069765 * A069767 A069768 A069769

Keyword

nonn

Author

Antti Karttunen, Apr 16 2002

Status

approved