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1, 1, 2, 2, 2, 4, 2, 4, 4, 8, 3, 4, 8, 8, 16, 3, 6, 8, 16, 16, 32, 4, 6, 12, 16, 32, 32, 64, 4, 8, 12, 24, 32, 64, 64, 128, 5, 8, 16, 24, 48, 64, 128, 128, 256, 5, 10, 16, 32, 48, 96, 128, 256, 256, 512, 6, 10, 20, 32, 64, 96, 192, 256, 512, 512, 1024, 6, 12, 20, 40, 64, 128, 192, 384, 512, 1024, 1024, 2048
(list;
table;
graph;
refs;
listen;
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text;
internal format)
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OFFSET
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1,3
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COMMENTS
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LINKS
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FORMULA
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T(n,k) = 2^(k-1) * floor((n-k+2)/2). - G. C. Greubel, Jun 06 2019
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EXAMPLE
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First few rows of the triangle:
1;
1, 2;
2, 2, 4;
2, 4, 4, 8;
3, 4, 8, 8, 16;
3, 6, 8, 16, 16, 32;
4, 6, 12, 16, 32, 32, 64;
...
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MATHEMATICA
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Table[2^(k-1)*Floor[(n-k+2)/2], {n, 1, 12}, {k, 1, n}]//Flatten (* G. C. Greubel, Jun 06 2019 *)
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PROG
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(PARI) {T(n, k) = 2^(k-1)*floor((n-k+2)/2)}; \\ G. C. Greubel, Jun 06 2019
(Magma) [[2^(k-1)*Floor((n-k+2)/2): k in [1..n]]: n in [1..12]]; // G. C. Greubel, Jun 06 2019
(Sage) [[2^(k-1)*floor((n-k+2)/2) for k in (1..n)] for n in (1..12)] # G. C. Greubel, Jun 06 2019
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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