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A229942
Number of exposed toothpick endpoints in the n-th row of the toothpick structure of A229940 (also A229950).
6
0, 1, 2, 2, 2, 2, 2, 3, 3, 2, 3, 4, 3, 2, 3, 4, 3, 3, 4, 4, 3, 2, 4, 6, 4, 2, 3, 4, 4, 4, 4, 5, 4, 2, 4, 6, 4, 2, 4, 6, 5, 4, 4, 4, 3, 2, 5, 8, 5, 3, 4, 4, 4, 4, 5, 6, 4, 2, 5, 8, 5, 2, 4, 6, 5, 4, 4, 4, 4, 4, 6, 9, 6, 2, 3, 4, 4, 4, 6, 8, 5, 2, 5, 8, 5, 2
OFFSET
1,3
COMMENTS
The second bisection gives A000005.
For more information see A229940.
EXAMPLE
Illustration of initial terms:
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A229940 Diagram n a(n) A000005
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. 1 0
. 2 1 1
1; | 3 2
0; 4 2 2
1; | 5 2
0; 6 2 2
1; | 7 2
0; 8 3 3
1, 1; | | 9 3
0, 1; | 10 2 2
1, 1; | | 11 3
0, 0; 12 4 4
1, 1; | | 13 3
0, 1; | 14 2 2
1, 1; | | 15 3
0, 0; 16 4 4
1, 1; | | 17 3
0, 1; | 18 3 3
1, 1, 1; | | | 19 4
0, 0, 1; | 20 4 4
1, 1, 1; | | | 21 3
0, 1, 1; | | 22 2 2
1, 1, 1; | | | 23 4
0, 0, 0; 24 6 6
1, 1, 1; | | | 25 4
0, 1, 1; | | 26 2 2
1, 1, 1; | | | 27 3
0, 0, 1; | 28 4 4
1, 1, 1; | | | 29 4
0, 1, 0; | 30 4 4
1, 1, 1; | | | 31 4
0, 0, 1; | 32 5 5
1, 1, 1, 1; | | | |
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CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, Oct 04 2013
STATUS
approved