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What is the next number of the following sequence - 1, 1, 3, 9, 23, ....

+1 vote
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What is the next number of the following sequence - 1, 1, 3, 9, 23, ....
posted Sep 5, 2016 by anonymous

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2 Answers

+1 vote
1,1,3,9,23,

Difference is 0, 2, 6, 14, next is 30 (here addition comes as 2, 4, 8, 16..)

so answer is 53
answer Sep 5, 2016 by Lekshmanan Perumal Murugan
Isn't the first number (-1)?
+1 vote

Differences of elements are the sum of two series
2, 4, 8, 16, 32, 64,
1, 3, 5, 7, 9, 11

2-1, 4-3, 8-5, 16-7, 32-9, 64-11

1, 1, 3, 9, 23, 53

answer Sep 6, 2016 by Viswambher Kambhampati
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