计算机程序解得 {代数和,个数}如下: {{0, 1}, {1, 3}, {2, 6}, {3, 10}, {4, 15}, {5, 21}, {6, 28}, {7, 36}, {8, 45}, {9, 55}, {10, 63}, {11, 69}, {12, 73}, {13, 75}, {14, 75}, {15, 73}, {16, 69}, {17, 63}, {18, 55}, {19, 45}, {20, 36}, {21, 28}, {22, 21}, {23, 15}, {24, 10}, {25, 6}, {26, 3}, {27, 1}}。
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