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A153831
Index sequence to A089840: set-wise difference of A153829 and A153830.
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
OFFSET
0,1
COMMENTS
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.
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jan 07 2009
STATUS
approved