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I don't know if this will help: 139+139=278 (the first two 3 digit number sequences) 139 x 20=2780 (thats the closest i could get to 2781) if you take 139 and times it by the first even number (2) you get 278, multply 278 by the next even number (4) you get 1112 so, I would answer 1.

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16y ago
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14y ago

The next number in the series is 224.

Explanation....

The Given Series is 1,2,4,13,31,112,...

Actually the series is 1,2,4,8,16,32,....

it means ......

5 | 8

----

1 - 3

5 | 16

-----

3 - 1

5 | 32

-----

5 | 6 - 2

----

1 - 1

5 | 64

----

5 | 12 - 4

----

2 - 2

So this series going like.. 1, 2, 4, 13, 31, 112, 224, 1003,.....

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Q: What is the next number in the sequence 1392781?
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