A032325 Number of ways to partition n labeled elements into pie slices forming an aperiodic pattern.

1, 1, 4, 17, 126, 832, 8646, 83281, 1035670, 13155686, 200866326, 3090454952, 55704133590, 1028017657682, 21123701763534, 453986750729681, 10610386574074710, 258237311112260158

Offset

1,3

Links

Table of n, a(n) for n=1..18.

C. G. Bower, Transforms (2)

Index entries for sequences related to Lyndon words

Formula

"CHJ" (necklace, identity, labeled) transform of 1, 1, 1, 1...

Crossrefs

Sequence in context: A307794 A071138 A337521 * A032335 A208803 A156076

Adjacent sequences: A032322 A032323 A032324 * A032326 A032327 A032328

Keyword

nonn

Author

Christian G. Bower

Status

approved