For each sequence given below, find a closed formulafor an, the nth term of the sequence (assume the firstterms here are always a0) by relating it to another sequencefor which you already know the formula.
?1,0,7,26,63,124,…
an=(n^3)-1
?1,1,7,17,31,49,…
an=2n^2-1
0,10,30,60,100,150,.....
an=10*((n(n+1))/2)
2,3,6,14,40,152,…
an=
The first three are correct I can't figure out thelast one.
