A124481 Number of connected hook length posets, with n elements.

1, 1, 2, 5, 11, 31, 75, 232, 607

Offset

1,3

Links

Table of n, a(n) for n=1..9.

Cheryl A. Gann and Robert A. Proctor, Poset Counts

Robert A. Proctor, Definition of hook length poset

Crossrefs

Cf. A000112, A124480, A124482, A124483.

Sequence in context: A139466 A291139 A139467 * A002862 A190865 A275427

Adjacent sequences: A124478 A124479 A124480 * A124482 A124483 A124484

Keyword

more,nonn

Author

Franklin T. Adams-Watters, Nov 03 2006

Status

approved