845534401, 83565065201, 829144019201, 834854554601, 854516148301, 866422665701, 878554044001, 889419071111, 890750408711, 891079866601, ...
Each of these is a prime equal to a multiple of its reversal plus-or-minus a prime smaller than itself in exactly 8 ways (A182239). For example:
845534401 = 104435548 * 3 + 532227757
= 104435548 * 5 + 323356661
= 104435548 * 6 + 218921113
= 104435548 * 8 + 10050017
= 104435548 * 9 - 94385531
= 104435548 * 11 - 303256627
= 104435548 * 14 - 616563271
= 104435548 * 15 - 720998819
All ten of our numbers begin with an 8. What will be the first term that does not?
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