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1, 4, 13, 40, 121 what is the next number in the pattern
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1, 4, 13, 40, 121 what is the next number in the pattern

User Jayendra
by
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1 Answer

1 vote
Add powers of 3.
1 + 3 = 4
4 + 9 = 13 = 4 + 3^2
13 + 27 = 40 = 13 + 3^3
40 + 81 = 121 = 40 + 3^4
Now you need to add 3^5 to 121.

121 + 3^5 = 121 + 243 = 364
User Tiran Ut
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