A101458 Prime digits in the decimal expansion of Khintchine's constant.

2, 5, 5, 2, 5, 3, 5, 3, 7, 3, 5, 7, 5, 3, 2, 3, 2, 2, 3, 2, 5, 3, 5, 5, 2, 3, 5, 5, 5, 7, 2, 5, 5, 3, 7, 5, 2, 2, 7, 3, 7, 7, 5, 5, 3, 5, 5, 2, 2, 7, 7, 7, 7, 3, 5, 7, 2, 5, 3, 3, 3, 2, 5, 3, 5, 2, 3, 5, 2, 3, 3, 2, 2, 3, 3, 2, 5, 2, 2, 2, 3, 7, 7, 2, 3, 7, 3, 7, 5, 3, 5, 3, 3, 7, 2, 3, 3, 5, 7, 7, 2, 2, 7, 7, 2