2,2,2
12222
122222
1222222
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Consecutive terms in the sequence are being divided by -2. Therefore, -1 / -2 = 1/2 or 0.5.
13 21 34 55
next terms in the sequence one eighth one fourth one half: 1/8, 1/4, 1/2, 1, 2, 4, 8,... (multiply by 2)
what are the next 2 numbers in this sequence: 20 , 1 ,18 ,4 ,9 ,1
2, 1, 0.5 Half the term each time.