The missing number is 26. The number after 29 is 58.
30
If the third number were 27, there is a simple solution. But with 26 there is none that I can see.
651 is the next number.
It appears that 26 and 40 are missing
The missing number is 26. The number after 29 is 58.
26
The answer depends on where the missing number is meant to be. If 2, 4, 6, 10, 26, X: then X = 72 If 2, 4, 6, 10, X, 26: then X = 16.8 If 2, 4, 6, X, 10, 26: then X = 6.6 If 2, 4, X, 6, 10, 26: then X = 5.4 If 2, X, 4, 6, 10, 26: then X = 1.2 If X, 2, 4, 6, 10, 26: then X = 6
The Answer is 26
26 Edit: a₁ = 8 , a₂= 8 + 2 = 10 , a₃& a₄up by 4, a₅ & a₆ up by 8 , .... by 16 a₄= 18 a₅ = 18 + 8 = 26 => answer
30, 20, 36, 23, 42, 26
30
17. The numbers are being increased by odd numbers beginning with 3.
If the third number were 27, there is a simple solution. But with 26 there is none that I can see.
651 is the next number.
It appears that 26 and 40 are missing
There does not appear to be a missing number. The sequence is n2 + 1. 12 + 1 = 2 : 22 + 1 = 5 : 52 + 1 = 26 : 262 + 1 = 677. The next number in the sequence is 6772 + 1 = 458330.