

A255330


a(n) = total number of nodes in the finite subtrees branching from the node n in the infinite trunk of "numberofruns beanstalk" (A255056).


11



1, 2, 0, 4, 1, 0, 7, 0, 3, 1, 0, 5, 2, 6, 0, 6, 0, 3, 1, 0, 5, 2, 12, 0, 2, 5, 0, 4, 2, 6, 0, 6, 0, 3, 1, 0, 5, 2, 12, 0, 2, 7, 1, 12, 4, 0, 2, 5, 0, 4, 2, 12, 0, 2, 5, 0, 4, 2, 6, 0, 6, 0, 3, 1, 0, 5, 2, 12, 0, 2, 7, 1, 12, 4, 0, 2, 7, 1, 10, 17, 0, 0, 1, 11, 4, 0, 2, 5, 0, 4, 2, 12, 0, 2, 7, 1, 12, 4, 0, 2, 5, 0, 4, 2, 12, 0, 2, 5, 0, 4, 2, 6, 0, 6, 0, 3, 1, 0, 5
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OFFSET

0,2


COMMENTS

A255058 gives the number of branches (children) of the node n in the trunk, of which one is the next node of the infinite trunk itself. Thus, if A255058(n) = 1, then a(n) = 0.


LINKS

Antti Karttunen, Table of n, a(n) for n = 0..8590


FORMULA

a(0) = 1; a(n) = sum_{k = A091067(A255057(n)) .. A255068(A255057(n))} A255327(k).
a(n) = A255328(n) + A255329(n).


EXAMPLE

The edgerelation between nodes is given by A236840(child) = parent. Odd numbers are leaves, as there are no such k that A236840(k) were odd.
The node 11 in the infinite trunk is A255056(11) = 30. Apart from 32 [we have A236840(32) = 30] which is the next node (node 12) in the infinite trunk, it has a single leafchild 31 [A236840(31) = 30] at the "left side" (less than 32), and a leafchild 33 [A236840(33) = 30] (more than 32) at the "right side", and also at that side, a subtree of three nodes 34 < 38 < 43 [we have A236840(43) = 38, A236840(38) = 34 and A236840(34) = 30], thus in total there are 1+1+3 = 5 nodes in finite branches emanating from the node 11 of the infinite trunk, and a(11) = 5.


PROG

(Scheme)
(define (A255330 n) (if (zero? n) 1 (let ((k (A255057 n))) (add A255327 (A091067 k) (A255068 k)))))
;; Other code as in A255327.


CROSSREFS

Partial sums: A255333.
Cf. A091067, A236840, A255056, A255058, A255068, A255327, A255328, A255329, A255331.
Sequence in context: A210444 A226949 A166589 * A291940 A153345 A140648
Adjacent sequences: A255327 A255328 A255329 * A255331 A255332 A255333


KEYWORD

nonn


AUTHOR

Antti Karttunen, Feb 21 2015


STATUS

approved



