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A055540 Total number of leaves (nodes of vertex degree 1) in all graphs of n nodes. 2
0, 2, 4, 14, 38, 153, 766, 6259, 88064 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

Eric Weisstein's World of Mathematics, Tree Leaf

CROSSREFS

Cf. A003227, A003228, A055541.

Sequence in context: A007462 A053623 A035010 * A006252 A079995 A279322

Adjacent sequences:  A055537 A055538 A055539 * A055541 A055542 A055543

KEYWORD

nonn,more

AUTHOR

Eric W. Weisstein

EXTENSIONS

a(8) and a(9) from Eric W. Weisstein, Jun 02 2004

STATUS

approved

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Last modified July 18 11:48 EDT 2019. Contains 325139 sequences. (Running on oeis4.)