The correct answer is C
5 10 30 150 950 11550
61 48 ? ...
12 3 15 ? 153 756
5 6.5 20 113.5 799 ...
22, 23, 31, 57, 122, 247
12 8 6 12 4.5 15
18 ...
9, 21, 67, 273, 1371, ?
38 18 16 28 ? 816
512 493 476 ? 448 437 .
1, 27, ?, 343, 729, 1331
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