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Search: id:A153831
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A153831 Index sequence to A089840: set-wise difference of A153829 and A153830. +0
6
68, 73, 74, 83, 84, 87, 88, 183, 184, 189, 190, 199, 202, 203, 252, 254, 261, 262, 268, 269, 270, 271, 515, 537, 539, 573, 575, 591, 593, 871, 894, 895, 990, 995, 996, 1110, 1132, 1134, 1466, 1489, 1490, 1585, 1590, 1591, 1600, 1601, 1604, 1605, 2213 (list; graph; listen)
OFFSET

0,1

COMMENT

The terms give the positions to bijections in A089840 which preserve A153835/A127302 (the non-oriented form of binary trees), but do not extend uniquely to automorphisms of an infinite binary tree.

LINKS

A. Karttunen, Table of n, a(n) for n = 0..2933

A. Karttunen, C-program for computing the initial terms of this sequence

CROSSREFS

Cf. also A153826, A153827, A153828, A153832, A153833.

Sequence in context: A043871 A058906 A130694 this_sequence A058980 A079703 A097760

Adjacent sequences: A153828 A153829 A153830 this_sequence A153832 A153833 A153834

KEYWORD

nonn

AUTHOR

Antti Karttunen (His_Firstname.His_Surname(AT)gmail.com), Jan 07 2009

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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