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A173787
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Triangle read by rows: T(n,k) = 2^n - 2^k, 0 <= k <= n.
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20
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0, 1, 0, 3, 2, 0, 7, 6, 4, 0, 15, 14, 12, 8, 0, 31, 30, 28, 24, 16, 0, 63, 62, 60, 56, 48, 32, 0, 127, 126, 124, 120, 112, 96, 64, 0, 255, 254, 252, 248, 240, 224, 192, 128, 0, 511, 510, 508, 504, 496, 480, 448, 384, 256, 0, 1023, 1022, 1020, 1016, 1008, 992, 960, 896, 768, 512, 0
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,4
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LINKS
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FORMULA
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T(2*n, 2*k) = T(n,k) * A173786(n,k), 0 <= k <= n.
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EXAMPLE
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Triangle begins as:
0;
1, 0;
3, 2, 0;
7, 6, 4, 0;
15, 14, 12, 8, 0;
31, 30, 28, 24, 16, 0;
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MATHEMATICA
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Table[2^n -2^k, {n, 0, 15}, {k, 0, n}]//Flatten (* G. C. Greubel, Jul 13 2021 *)
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PROG
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(Magma) [2^n -2^k: k in [0..n], n in [0..15]]; // G. C. Greubel, Jul 13 2021
(Sage) flatten([[2^n -2^k for k in (0..n)] for n in (0..15)]) # G. C. Greubel, Jul 13 2021
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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