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Search: id:A156663
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| A156663 |
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Triangle by columns, powers of 2 interleaved with zeros. |
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+0
3
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| 1, 0, 1, 2, 0, 1, 0, 2, 0, 1, 4, 0, 2, 0, 0, 1, 0, 4, 0, 2, 0, 1, 8, 0, 4, 0, 2, 0, 1, 0, 8, 0, 4, 0, 2, 0, 1, 16, 0, 8, 0, 4, 0, 2, 0, 1, 0, 16, 0, 8, 0, 4, 0, 2, 0, 1, 32, 0, 16, 0, 8, 0, 4, 0, 2, 0, 1, 0, 32, 0, 16, 0, 8, 0, 4, 0, 2, 0, 1
(list; table; graph; listen)
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OFFSET
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0,4
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COMMENT
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Eigensequence of the triangle = A001045
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FORMULA
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Triangle by columns, (1, 0, 2, 0, 4, 0, 8,...) in every column.
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EXAMPLE
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First few rows of the triangle =
1;
0, 1;
2, 0, 1;
0, 2, 0, 1;
4, 0, 2, 0, 1;
0, 4, 0, 2, 0, 1;
8, 0, 4, 0, 2, 0, 1;
0, 8, 0, 4, 0, 2, 0, 1;
16, 0, 8, 0, 4, 0, 2, 0, 1;
0, 16, 0, 8, 0, 4, 0, 2, 0, 1;
32, 0, 16, 0, 8, 0, 4, 0, 2, 0, 1;
0, 32, 0, 16, 0, 8, 0, 4, 0, 2, 0, 1;
...
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CROSSREFS
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A001045
Sequence in context: A086713 A049771 A158944 this_sequence A139366 A049767 A091394
Adjacent sequences: A156660 A156661 A156662 this_sequence A156664 A156665 A156666
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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), Feb 12 2009
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