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A162615
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Triangle read by rows in which row n lists n terms, starting with n, such that the difference between successive terms is equal to n^3 - 1 = A068601(n).
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6
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1, 2, 9, 3, 29, 55, 4, 67, 130, 193, 5, 129, 253, 377, 501, 6, 221, 436, 651, 866, 1081, 7, 349, 691, 1033, 1375, 1717, 2059, 8, 519, 1030, 1541, 2052, 2563, 3074, 3585, 9, 737, 1465, 2193, 2921, 3649, 4377, 5105, 5833, 10, 1009, 2008, 3007, 4006, 5005, 6004
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OFFSET
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1,2
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COMMENTS
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LINKS
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FORMULA
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Row sums: n*(n^4 - n^3 + n + 1)/2. - R. J. Mathar, Jul 20 2009
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EXAMPLE
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Triangle begins:
1;
2, 9;
3, 29, 55;
4, 67, 130, 193;
5, 129, 253, 377, 501;
6, 221, 436, 651, 866, 1081;
...
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MAPLE
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MATHEMATICA
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Flatten[Table[c=n^3-1; NestList[#+c&, n, n-1], {n, 10}]] (* Harvey P. Dale, Nov 13 2011 *)
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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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