Given any number you want for the nth term (n>4), it is possible to find a polynomial of order 4 that will fit these points and the additional one. Consequently, any number can be the nth number - the rule for that is easy to find.
Still, the simplest solution here is a polynomial of degree 1: Un = 0.8n + 2
12, 20, 28, 36, 44
The LCM is 2772.
44
60 72 90 = 360 18 28 36 is 252 and 24 36 44 is 792
They are: 24 28 32 36 40 44 and 48
The nth term is given by: rn = n2 + 8
44/28 = 11/7
48
Difference is 5,7,9,11,13 Second difference is 2 (2x)^2 gives 4,9,16,25 Difference between 2x^2 and sequence is -5 Thus, the nth term will be (2n)^2-5
While there are not enough numbers to fully clarify the nth term of the sequence, according to the sequence so far it appears that the nth term is equal to n4. Therefore, the next number will equal 44 = 256
28 = 2 x 2 x 7 36 = 2 x 2 x 3 x 3 44 = 2 x 2 x 11 GCF = 2 x 2 = 4
36/44 = 9/11