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Search: id:A110769
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A110769 The r-th term of the n-th row of the following triangle contains sum of r successive numbers in decreasing order beginning from T(n)-T(r-1) where T(n) is the n-th triangular number. 1 3 3 6 9 6 10 17 18 10 15 27 33 30 15 ... Sequence contains the triangle by rows. +0
4
1, 3, 3, 6, 9, 6, 10, 17, 18, 10, 15, 27, 33, 30, 15, 21, 39, 51, 54, 45, 21, 28, 53, 72, 82, 80, 63, 28, 36, 69, 96, 114, 120, 111, 84, 36, 45, 87, 123, 150, 165, 165, 147, 108, 45, 55, 107, 153, 190, 215, 225, 217, 188, 135, 55, 66, 129, 186, 234, 270, 291, 294, 276 (list; table; graph; listen)
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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.


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