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A324937
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Triangle read by rows: T(n, k) = 2*n*k + n + k - 8.
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0
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-4, -1, 4, 2, 9, 16, 5, 14, 23, 32, 8, 19, 30, 41, 52, 11, 24, 37, 50, 63, 76, 14, 29, 44, 59, 74, 89, 104, 17, 34, 51, 68, 85, 102, 119, 136, 20, 39, 58, 77, 96, 115, 134, 153, 172, 23, 44, 65, 86, 107, 128, 149, 170, 191, 212, 26, 49, 72, 95, 118, 141, 164, 187, 210, 233, 256
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table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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EXAMPLE
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Triangle begins:
-4;
-1, 4;
2, 9, 16;
5, 14, 23, 32;
8, 19, 30, 41, 52;
11, 24, 37, 50, 63, 76;
14, 29, 44, 59, 74, 89, 104;
17, 34, 51, 68, 85, 102, 119, 136;
20, 39, 58, 77, 96, 115, 134, 153, 172; etc.
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MATHEMATICA
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t[n_, k_]:=2 n k + n + k - 8; Table[t[n, k], {n, 11}, {k, n}]//Flatten
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PROG
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(Magma) [2*n*k+n+k-8: k in [1..n], n in [1..11]]; /* As triangle */ [[2*n*k+n+k-8: k in [1..n]]: n in [1.. 15]];
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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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