1, 2, 6, 15, 31, 56, 91?

More Questions from Odd Man Out and Series

• 25, 36, 49, 81, 121, 169, 225?
• 56, 72, 90, 110, 132, 150?
• 6, 13, 18, 25, 30, 37, 40?
• 46080, 3840, 384, 48, 24, 2, 1?
• 36, 54, 18, 27, 9, 18.5, 4.5?
• 4, 5, 7, 10, 14, 18, 25, 32?
• 253, 136, 352, 460, 324, 631, 244?
• 11, 13, 17, 19, 23, 29, 31, 37, 41,(...):
• 5, 10, 13, 26, 29, 58, 61, (...) :
• 8, 27, 125, 343, 1331?

Discussion & Comments