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Q: What is the next logical number in the sequence 1 2 4 7 11?

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17?

15

The next number is 4. 1, 3, 2, 5, 7, 4, 9, 11, 6

41

7 followed by 43, 9, 52, 11, and 63 etc.

The next number in this sequence is 13112221.

it has to be 11

11

71422315

The next number in the sequence would be 23. The sequence consists of prime numbers.

11

11

11.

42 is the next number in this sequence. This number sequence is adding the next prime number to the last number. So 1 + 2 = 3. Then 3 + 3 = 6, 6 + 5 = 11, 11 + 7 = 18, 18 + 11 = 29. The next prime number after 11 is 13, so 29 + 13 = 42. The next numbers would be 59 (42+17), 78 (59+19), and 101 (78+23)

It all depends on the sequence you are talking about. For example, the next number in the sequence 0,1,1,2,3,5,8,13,_ would be 21. This would be the Fibonacci sequence as the rule is add the 2 previous terms to get the next term. Another example would be this: 11,121,1331,14641,______.The missing number is 161051, following the pattern of powers of 11, 11^1, 11^2, 11^3 and so on. If you understand what I am trying to say, it all depends on the sequence you are trying to find the number in.

14

312211

5351

239

16

It is obvious that 7 is added to get the next number from the previous one.

6

It is 26 followed by 31

11

I'm fairly sure you meant the "4" to be a "3" in this sequence. There is no "next number" in the sequence given, since there is no rule that encompasses the entire sequence. And to be fair, in number sequences, any number can still logically be "next". If it's not the number that you expect, it is still a number sequence. It is just not a predicable one.