Another IQ Test number sequence

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jezunknown

Here: 21, 42, 138, 1416, 32115, 64116, 1117128, ?

IMDanielspanner
jezunknown wrote:

Here: 21, 42, 138, 1416, 32115, 64116, 1117128, ?

1118256

 

jezunknown

Hmmm, it’s complicated 

leahabs1
1118256