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Search: id:A075533
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A075533 Number of labeled rooted trees where each node at height h has 0 or h+1 children. +0
3
1, 2, 0, 12, 0, 0, 840, 0, 0, 50400, 831600, 0, 0, 302702400, 1135134000, 14529715200, 0, 2315673360000, 15545887156800, 140792940288000, 443497761907200, 28006062372288000, 623360743125120000 (list; graph; listen)
OFFSET

1,2
LINKS

Index entries for sequences related to rooted trees

CROSSREFS

Cf. A075532, A075534.

Sequence in context: A138542 A057862 A102869 this_sequence A053814 A095238 A167345

Adjacent sequences: A075530 A075531 A075532 this_sequence A075534 A075535 A075536

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Sep 19 2002

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.

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