16
21. This is the Fibonacci series.
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1/2 * 1/6 = 1/12
The next number has to be 41; you always add the powers of three to the previous number beginning with 0. 3^0=1; 1+1=2; 3^1=3; 2+3=5; 3^2=9; 5+9=14; 3^3=27; 14+27=41 the next number would be 122 (81+41); you could also multiply the number by 3 and then substract 1. By the way: x(n)=x(n-1)+3^(x-2) ------------------------------------------------------------------------------------------------------------------- It could also be the Catalan number sequence, found by 1/(n+1) * (2n choose n), in which case the next number would be 42.
1 5 6 8 10 11 12 13 The median (or middle number) is 9.
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9
What would be the next number in this series 15 12 13 10 11 8?
The next number in the sequence is 15. The pattern is as follows: from 1 to 6 is +5, from 6 to 9 +4, from 9 to 12 +3, from 12 to 14 +2, and then from 14 to the answer (15) +1.
The number that comes next in the series 1 2 2 5 3 10 is 7. You get this number by subtracting the number 3 from the number 10.
60Subtract 1/230Subtract 1/320Subtract 1/415Subtract 1/512Now subtract 1/6The next number is 10.
21 - each number in the series increases by the series 1,2,3,4,5.... Whereby 6 and 7 are separated by 1, 7 and 9 are separated by 2, 9 and 12 are separated by 3, 12 and 16 are separated by 4, so the next in the series would be 21 (16 and 21 are separated by 5).
1Another AnswerEach number of the series appears to double as the series progresses: 1/12 (x2), 1/6 (x2), 1/3 (x2), 2/3, etc. This being so, the next number in the series would be 4/3 or 1-1/3 (2/3 x 2)..
The series goes like this 2 = 1^2 + 1^3 (1 square + 1 cube) 12 = 2^2 + 2^3 36 = 3^2 + 3^3 and so on.. So, the next number in the series is 6^2 + 6^3 = 252.
This series is of the function f(x) = x2+1, starting with x=0.The next number in the series is 26. The number after that is 37.
The next number in the series 1 2 4 8 10 20 22 is
These are squares. 12 = 1 22 = 4 32 = 9 (it is missing 42 = 16) 52 = 25 62 = 36 The next one in the series is probably 72 = 49.