A101684 Exponent of 2 in denominators of expansion of exp(-1 + sqrt(1-x)).

0, 1, 0, 3, 4, 3, 6, 7, 6, 9, 10, 8, 12, 13, 11, 15, 16, 15, 18, 19, 18, 21, 22, 19, 24, 25, 22, 27, 28, 27, 30, 31, 30, 33, 34, 32, 36, 37, 35, 39, 40, 39, 42, 43, 42, 45, 46, 42, 48, 49, 45, 51, 52, 51, 54, 55, 54, 57, 58, 56, 60, 61, 59, 63, 64, 63, 66, 67, 66, 69, 70, 67