2 x 4 -1 =7
7 x 4 - 2 = 26
26 x 4 - 3 = 101
101 x 4 - 4 = 400
400 x 4 - 5 = 1600 - 5 = 1595
So, the next number is 1595
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pattern "2, 7, 26, 101, 400" next
The next number is 1595. The series is obtained by multiplying the previous number by 4 and then subtracting (n - 1). 1st number = 2 - ( 1 - 1) = 2 2nd number = (4 x 2) - (2 - 1) = 7 3rd number = (4 x 7) - (3 - 1) = 26 4th number = (4 x 26) - (4 - 1) = 101 5th number = (4 x 101) - (5 - 1) = 400 6th number = (4 x 400) - (6 - 1) = 1595
The next number could be 26 The next number could be 12 - - - - - - - - - The next number that is in the sequence is 12.
a
16 to 26 (+10) 26 to 21 (-5) 21 to 31 (+10) 31 (-5) = 26 26