⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ d(1)=13 d(n)=d(n−1)+17 ​ Find the 4^{\text{th}}4 th 4, start superscript, start text, t, h, end text, end superscript term in the sequence.