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

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dejesusxiomaris dejesusxiomaris

11-01-2018
Mathematics

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

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mathstudent55 mathstudent55 · Answer 1 · 2018-01-11T18:27:29+01:00

mathstudent55 mathstudent55

11-01-2018

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

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