A single number, such as 18233039, cannot define a series.
The pattern is add three and then multiply by three. The next number is 174.
The next two numbers are 26 & 78.
Dart Board
The difference between the numbers is increasing by 3 each time. Therefore, after a difference of 15 comes a difference of 18, therefore, the next number is 47 + 18 = 65.
162 and 486 the pattern is that the next number is three times the previous number.
162, 486, 1458
They are reducing by 4.5 each time. So the next two numbers are 9 and 4.5 after that.
To find the next number in the series, we can observe the alternating pattern between pairs of numbers. The first number is 14, and it decreases by 3 to 11, then increases by 7 to 18. Following this pattern, the next number after 18 should decrease by 2, resulting in 16. Therefore, the next number in the series is 16.
The pattern is add three and then multiply by three. The next number is 174.
The next two numbers are 26 & 78.
18 and 6.
18, 22, 26 and 30 have two of the same factors as 16.
Based on the sample you have provided, I see that 4 numbers, counting by 2 from 12 to 18, form a repeating sequence. I would expect that the next 4 numbers in this series would again be 12, 14 16, and 18.
Dart Board
6 and 18
If you mean 288 144 72 36 then the next two numberes are 18 and 9 because they are being halved each time.
The series 1318162119 appears to be a sequence where each number is formed by concatenating the first few even numbers. The pattern is: 2 (2), 4 (4), 6 (6), 8 (8), 10 (10), 12 (12), 14 (14), and 16 (16). Following this pattern, the next even number is 18, which would be represented as "18" in the series. Thus, the next number in the series is 20, resulting in the next sequence being 131816211920.