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Search: id:A130123
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| A130123 |
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Infinite lower triangular matrix with 2^k in the right diagonal and the rest zeros. Triangle, T(n,k), n zeros followed by the term 2^k. Triangle by columns, (2^k, 0, 0, 0,...). |
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+0
8
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| 1, 0, 2, 0, 0, 4, 0, 0, 0, 8, 0, 0, 0, 0, 16, 0, 0, 0, 0, 0, 32, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 256, 0, 0, 0, 0, 0, 0, 0, 0, 0, 512, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2048, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4096, 0, 0, 0, 0, 0
(list; table; graph; listen)
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OFFSET
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0,3
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COMMENT
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A 2^n transform matrix.
A130123 * A007318 = A038208. A007318 * A130123 = A013609. A130124 = A130123 * A002260. A130125 = A128174 * A130123.
Triangle T(n,k), 0<=k<=n, given by [0,0,0,0,0,0,...] DELTA [2,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938 . - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), May 26 2007
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EXAMPLE
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First few terms of the triangle are:
1;
0, 2;
0, 0, 4;
0, 0, 0, 8;
...
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CROSSREFS
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Cf. A130124, A130125.
Sequence in context: A064146 A028590 A074644 this_sequence A136337 A028601 A077958
Adjacent sequences: A130120 A130121 A130122 this_sequence A130124 A130125 A130126
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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), May 11 2007
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EXTENSIONS
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More terms from Philippe DELEHAM (kolotoko(AT)wanadoo.fr), May 26 2007
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