A075533 Number of labeled rooted trees where each node at height h has 0 or h+1 children.

1, 2, 0, 12, 0, 0, 840, 0, 0, 50400, 831600, 0, 0, 302702400, 1135134000, 14529715200, 0, 2315673360000, 15545887156800, 140792940288000, 443497761907200, 28006062372288000, 623360743125120000

Offset

1,2

Links

Table of n, a(n) for n=1..23.

Index entries for sequences related to rooted trees

Crossrefs

Cf. A075532, A075534.

Sequence in context: A102869 A274177 A364375 * A355783 A053814 A293260

Adjacent sequences: A075530 A075531 A075532 * A075534 A075535 A075536

Keyword

nonn

Author

Christian G. Bower, Sep 19 2002

Status

approved