120, 320,?, 2070, 5195, 13007.5

More Questions from Number Series

• 27, 38, 71, 126, 203?
• 435, 354, 282, 219, 165?
• 4, 200, 369, 513, 634?
• 11, 18, 29, 42, 59, 80, 101
• 2, 9, 32, 105, 436, 2195, 13182
• 5, 55, 495, 3465, 17325, 34650, 51975
• 3, 7, 16, 32, 56, 93, 142
• 4, 5, 12, 38, 160, 805, 4835
• 8, 11, 17, 47, 128, 371, 1100
• 1, 5, 13, 31, 61, 125, 253

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