According to Wittgenstein's Finite Rule Paradox every finite sequence of numbers can be a described in infinitely many ways - some simple, some complicated but all equally valid.
So, one possible solution to the question is
T(n) = (n4 - 6*n3 + 23*n2 - 18*n + 24)/12 for n = 1, 2, 3, ...
16 is a term in the expression 16+x
16
(n+1)^2
It is an algebraic expression that can be simplified to: 45x -16
It is an algebraic expression that can be simplified to: 23x-16
The nth term is: 4n
Each term is double the previous term and so the next term will be 64
They are increasing by increments of 4 8 16 32 .... etc
m+16, is an algebraic expression.
8x2
16n
16 is a term in the expression 16+x
16
If x is the unknown variable then it can be: x-16
What is the algebraic expression for 5 less than a certain number
(n+1)^2
It is an algebraic expression that can be simplified to: 45x -16