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What is the next term of this sequence 1, 3, 7, 15, 31, 63, _?

A127

B149

C254

D198

Answer:

A. 127

Related Questions:

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series. 4,7, 12, 19, 28, ?
വിട്ടുപോയ പദസംഖ്യ ഏത് ? 1, 5, 11, 19, 29, ---, 55

ശ്രേണി പൂർത്തിയാക്കുക ?

16,19, 28, 43, 64 , _____

ACE:FGH::LNP:.....
0, 6, 24, 60, 120, 210,.....