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A352242
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Regular triangle T(n,k) = (n-k)*(n^3-k^3) for n>=2 and 1 <= k <= n-1, read by rows.
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3
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7, 52, 19, 189, 112, 37, 496, 351, 196, 61, 1075, 832, 567, 304, 91, 2052, 1675, 1264, 837, 436, 127, 3577, 3024, 2425, 1792, 1161, 592, 169, 5824, 5047, 4212, 3325, 2416, 1539, 772, 217, 8991, 7936, 6811, 5616, 4375, 3136, 1971, 976, 271, 13300, 11907, 10432, 8869, 7236, 5575, 3952, 2457, 1204, 331
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OFFSET
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2,1
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LINKS
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EXAMPLE
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Triangle begins:
7;
52, 19;
189, 112, 37;
496, 351, 196, 61;
1075, 832, 567, 304, 91;
2052, 1675, 1264, 837, 436, 127;
...
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MATHEMATICA
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Table[(n - k) (n^3 - k^3), {n, 2, 11}, {k, n - 1}] // Flatten (* Michael De Vlieger, Mar 09 2022 *)
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PROG
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(PARI) row(n) = vector(n-1, k, (n-k)*(n^3-k^3));
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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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