write the 16th term of the sequence defined by an=n^2-n+1
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a1 = first term = 2
a2 = 2nd term = a1 + 9 = 11
a3 = a2+9 = 11 + 9 = 20
a4 = 20 + 9 = 29
a5 = 29 + 9 = 38
a6 = 38 + 9 = 47
a7 = 47 + 9 =56
a8 = 56 + 9 = 65
a9 = 65 + 9 = 74
a10 = 74 + 9 = 83
a11 = 83 + 9 = 92
a12 = 92 + 9 = 101
a13 = 1041 + 9 = 110
a14 = 110 + 9 = 119
a15 = 119 + 9 = 128
a16 = 128 + 9 = 137
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