A126294 Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A125987/A125988.

1, 1, 2, 3, 4, 8, 16, 17, 32, 40, 44, 60, 88, 100

Offset

0,3

Comments

The number of orbits (equivalence classes) to which the square of Vaille's automorphism partitions the set of A000108(n) Dyck paths of semilength n.

Links

Table of n, a(n) for n=0..13.

Crossrefs

a(2n) = 2*A126291(2n) for n>0.

Sequence in context: A352817 A189740 A118841 * A339973 A224912 A162724

Adjacent sequences: A126291 A126292 A126293 * A126295 A126296 A126297

Keyword

nonn

Author

Antti Karttunen, Jan 02 2007

Status

approved