A103129 Least k such that 10^n + k - 1 is the first of a pair of twin primes.

2, 2, 20, 8, 152, 38, 140, 38, 8, 278, 818, 62, 1268, 98, 2372, 1550, 20, 620, 98, 392, 410, 650, 5528, 2732, 560, 950, 428, 602, 2798, 1682, 7190, 2450, 6752, 7598, 8420, 16880, 872, 5570, 10328, 16112, 2132, 6122, 23330, 5180, 4250, 2642, 2258, 3998