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A128208
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Inverse of number triangle A128210.
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2
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1, 1, 1, 0, 1, 1, 0, 0, 3, 1, 0, 0, 0, 5, 1, 0, 0, 0, 0, 11, 1, 0, 0, 0, 0, 0, 21, 1, 0, 0, 0, 0, 0, 0, 43, 1, 0, 0, 0, 0, 0, 0, 0, 85, 1, 0, 0, 0, 0, 0, 0, 0, 0, 171, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 341, 1
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,9
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COMMENTS
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Sub-diagonal is A001045(n+1). Row sums are A128209.
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LINKS
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Table of n, a(n) for n=0..65.
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EXAMPLE
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Triangle begins
1,
1, 1,
0, 1, 1,
0, 0, 3, 1,
0, 0, 0, 5, 1,
0, 0, 0, 0, 11, 1,
0, 0, 0, 0, 0, 21, 1,
0, 0, 0, 0, 0, 0, 43, 1,
0, 0, 0, 0, 0, 0, 0, 85, 1,
0, 0, 0, 0, 0, 0, 0, 0, 171, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 341, 1
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CROSSREFS
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Sequence in context: A058612 A099725 A285118 * A154721 A185664 A300812
Adjacent sequences: A128205 A128206 A128207 * A128209 A128210 A128211
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KEYWORD
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nonn,tabl
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AUTHOR
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Paul Barry, Feb 19 2007
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STATUS
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approved
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