Mathematics, 13.03.2020 17:10 jackieeecx3

Find the number of ways to partition the numbers 1, 2, . . . , 12 into four sets of three numbers, so that the sum of the numbers in each set is divisible by 3. (The order of the sets does not matter, and the order of the elements within each set does not matter. For example, the partition {1, 5, 12}, {2, 9, 10}, {3, 4, 8}, {6, 7, 11} is the same as the partition {8, 3, 4}, {9, 10, 2}, {7, 11, 6}, {12, 5, 1}.)

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Find the number of ways to partition the numbers 1, 2, . . . , 12 into four sets of three numbers, s...