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1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
1 6 15 20 15 6 1
1 7 21 35 35 21 7 1
1 8 28 56 70 56 28 8 1
jumlahnya 1 + 8 + 28 + 56 + 70 + 56 + 28 + 8 + 1 = 128
jumlahnya 2^7 = 2 x 2 x 2 x 2 x 2 x 2 x 2 = 128