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This is a two-step sequence.

when n is even, tn = 4*tn-1

and when n is odd, tn = tn-1 + 1

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Q: 1 4 5 20 21 84 85 pattern rule is?
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Related questions

What is 0.84 divided by 0.2?

4.2


What is 20 over 84 in simplest form?

It is: 20/84 = 5/21 in its simplest form


What is 80 over 84 simplified to?

80 over 84 simplified = 20/21


What is 80 over 84 in simplest form?

20/21


What is this pattern rule for this pattern 21-66-42-61-84-56?

The numbers fit the quintic function: t(n) = (27n5 - 556n4 + 4253n3 - 14876n2 + 23440n - 11784)/24 for n = 1, 2, 3, etc


What are the greatest common factor and least common multiple of 21 and 84?

The GCF of 21 and 84 is 21, since it is a factor of 84. The LCM of 21 and 84 is 84, since it is a multiple of 21.


What is negative 84 divided by 4?

21


What is 1 quarter of 84?

it is 21


What is 21 of 25 as a percent?

84%. You get this by dividing 21 by 24 and you get .84 which is 84/100ths equaling 84%.


What percent of 84 is 21?

21 is one quarter of 84 so it is 25%


What are the factors of 63 84 and 20?

1, 2, 4, 5, 10, 20 1, 3, 7, 9, 21, 63 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84


What is the LCM for 21 and 28?

The answer is 84 21:21,42,63,(84) 28:28,56,(84)