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A227809
Number of rooted identity trees with n nodes and exactly 5 subtrees from the root.
2
1, 6, 18, 57, 165, 460, 1242, 3295, 8589, 22169, 56675, 143941, 363527, 914253, 2291088, 5725579, 14275461, 35526939, 88279211, 219088566, 543169235, 1345516437, 3330785029, 8240718421, 20379364252, 50380569630, 124513186628, 307663311638, 760095010218
OFFSET
15,2
LINKS
EXAMPLE
: n=15 o :
: / /|\ \ :
: / ( | ) \ :
: o o o o o :
: /| | | | :
: o o o o o :
: | | | :
: o o o :
: | :
: o :
CROSSREFS
Column k=5 of A227774.
Sequence in context: A075386 A056343 A363517 * A119106 A223468 A223211
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jul 31 2013
STATUS
approved