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A055350 Number of labeled mobiles (circular rooted trees) with n nodes and 3 leaves. 1
8, 220, 4200, 71400, 1176000, 19474560, 330220800, 5787936000, 105380352000, 1997835840000, 39477236198400, 813155511168000, 17453093898240000, 390070546145280000, 9070029416448000000, 219204470936715264000 (list; graph; refs; listen; history; internal format)
OFFSET

4,1

LINKS

Index entries for sequences related to mobiles

CROSSREFS

Column 3 of A055349.

Sequence in context: A000442 A115964 A188680 * A183261 A006919 A179122

Adjacent sequences:  A055347 A055348 A055349 * A055351 A055352 A055353

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), May 15 2000

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Last modified February 14 09:18 EST 2012. Contains 205614 sequences.