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Search: id:A131255
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| 1, 0, 1, 0, 1, 1, 1, 0, 2, 1, 0, 1, 1, 3, 1, 0, 1, 1, 3, 4, 1, 1, 0, 2, 2, 6, 5, 1, 0, 1, 1, 3, 5, 10, 6, 1, 0, 1, 1, 3, 5, 11, 15, 7, 1, 1, 0, 2, 2, 6, 10, 21, 21, 8, 1
(list; table; graph; listen)
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OFFSET
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0,9
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COMMENT
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Row sums = A004695 starting (1, 1, 2, 4, 6, 10, 17, 27, 44, 72,...). A058393 = A000012(signed) * A004070.
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FORMULA
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A004070 * A000012, where A000012 = (1; -1,1; 1,-1,1;...).
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EXAMPLE
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First few rows of the triangle are:
1;
0, 1;
0, 1, 1;
1, 0, 2, 1;
0, 1, 1, 3, 1;
0, 1, 1, 3, 4, 1;
1, 0, 2, 2, 6, 5, 1;
0, 1, 1, 3, 5, 10, 6, 1;
0, 1, 1, 3, 5, 11, 15, 7, 1;
1, 0, 2, 2, 6, 10, 2, 21, 8, 1;
...
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CROSSREFS
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Cf. A004070, A000012, A004695, A058393.
Sequence in context: A029878 A080934 A137560 this_sequence A133607 A103631 A083856
Adjacent sequences: A131252 A131253 A131254 this_sequence A131256 A131257 A131258
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Jun 23 2007
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