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It is possible to find infinitely many polynomials of order 5 such that the first five numbers are as listed in the question and any selected number is the next. There are also non-polynomial solutions.
The simplest polynomial of order 4 is
Un = (n^4 - 2n^3 + 11n^2 - 58n + 144)/24 for n = 1, 2, 3, ...
and accordingly, the next number in the sequence is 44.
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Which number should come next in the series 1-3-6-10-15-?
The next number is -21
Which number should come next in the series 1 - 1 - 2 - 3 - 5 - 8 - 13?
21
Next Number in the Series 1 - 1 - 2 - 3 - 5 - 8 - 13 - 21 - 26 - 31?
57
What comes next in this series 1-1-2-3-5-8-13?
Answer = 21 The next number is the previous 2 numbers added together
What is the next number in the sequence 3-15-6-30-21?
The next number in the sequence 3-15-6-30-21 is -207.
Which number should come next in the series 1-3-6-10-15-?
The next number is -21
Which number is next in series 1-1-2-3-5-8-13?
21
Find the next number in the series 1 3 7 13 21 31?
43
The next number in the series 0 1 3 6 10 15 21 is?
28
What is the next number in the series 243 162 108 72 48 32?
If you look at this series, you can see that each number is 2/3 of the one before it. The next number then is 2/3 * 32, which equals 64/3, or 21 1/3.
Which number should next in the series 1-1-2-3-5-8-13?
21
What is the next number in the series 13 18 16 21 19?
24, they are going up in 3's, 13, 16, 19 and 18, 21 so next number is 24.
The next number in the series 6.7.9.12.16 is?
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).
What is the next number in the series 1 3 6 10 15 21 28 36 45?
55
What number should come next in the series 1 - 1 - 2 - 3 - 5 - 8 13 -?
21
Which number should come next in the series 1 1 2 3 5 8 13?
21
Which number should come next in the series-1-1-2-3-5-8-13?
21.
