

A239091


Prefix overlap of dictionary consisting of binary expansions of 0 through n.


2



0, 1, 2, 3, 5, 6, 8, 9, 12, 14, 17, 18, 21, 23, 26, 27, 31, 34, 38, 40, 44, 47, 51, 52, 56, 59, 63, 65, 69, 72, 76, 77, 82, 86, 91, 94, 99, 103, 108, 110, 115, 119, 124, 127, 132, 136, 141, 142, 147, 151, 156, 159, 164, 168, 173, 175, 180, 184, 189, 192, 197, 201, 206
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OFFSET

1,3


COMMENTS

The prefix overlap of a dictionary is the sum of the prefix overlaps between successive words.


LINKS



EXAMPLE

For n=5 the dictionary is
0
1
10
11
100
101
and the successive prefix overlaps are 0,1,1,1,2, whose sum is a(5)=5.


CROSSREFS



KEYWORD

nonn,base


AUTHOR



STATUS

approved



