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A032030 Number of series-reduced planted planar trees with n leaves of 2 colors where any 2 subtrees extending from the same node are different. 0
2, 2, 8, 46, 276, 1836, 12712, 90610, 661652, 4922404, 37178736, 284330552, 2197474456, 17136206984, 134667604360, 1065457242054, 8479671583004, 67841927540372, 545314544677904, 4401667141277988 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..20.

Index entries for sequences related to rooted trees

FORMULA

Doubles (index 2+) under "AGK" (ordered, elements, unlabeled) transform.

CROSSREFS

Sequence in context: A009544 A077607 A264835 * A184347 A006673 A053978

Adjacent sequences:  A032027 A032028 A032029 * A032031 A032032 A032033

KEYWORD

nonn

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified February 20 10:45 EST 2018. Contains 299385 sequences. (Running on oeis4.)