217! I promise.
75
2+3=53+5=85+8=1313+21=3333 is the next number in this pattern. This pattern is called a Fibonacci.
The next three numbers are: 87, 141, 228. Each number in the sequence after the first two is the sum of the previous two numbers. This is a variation of the Fibonacci sequence which starts with 1, 1, ... (and then continues ..., 2, 3, 5, 8, 13, ...).
35
217! I promise.
75
2+3=53+5=85+8=1313+21=3333 is the next number in this pattern. This pattern is called a Fibonacci.
1-7-21-46-85-141. Take the "first differences" between the numbers. 6, 14, 25, 39, 56. Take the SECOND differences. 8, 11, 14, 17. Ah. It looks like a sequence where the second difference is two. Continue the next number in the second difference list. It would be 17 + 3 = 20. Add that number to the last number in the first difference list. 56 + 20 = 76. And that's what you add to the last number in the original pattern to get the next number in it. 141 + 76 = 217.
21
61 81 101 121 141...you get were im coming from!
The next number will be 13+21 = 34
34 55 89 etc..
2 hours 21 minutes 60+60+21=141
13 & 21
21 The pattern is 121, 12321, 1234321
The next three numbers are: 87, 141, 228. Each number in the sequence after the first two is the sum of the previous two numbers. This is a variation of the Fibonacci sequence which starts with 1, 1, ... (and then continues ..., 2, 3, 5, 8, 13, ...).