The pattern in the sequence 0, 3, 9, 21 involves adding consecutive odd numbers. Starting with 0, then adding 1+2, 3+6, and 9+12 gives you the next number in the sequence. Therefore, the next number would be 21 + 15 = 36.
Chat with our AI personalities
Oh, dude, it's like a party trick, right? The next number is 39. You just add the previous number and then multiply by 3. It's like math, but funnier.
It is 21 + 34 = 55
The answer is 21.Your numerical series is the beginning of a mathematical sequence called Fibonacci Numbers.The first number of the sequence is 0, the second number is 1, and each subsequent number is equal to the sum of the previous two numbers of the sequence itself (i.e. 0, 1, 1, 2, 3, 5, 8, 13, 21, etc.).
7203
The next number is 4, followed by -2
2+3=53+5=85+8=1313+21=3333 is the next number in this pattern. This pattern is called a Fibonacci.