A054311 Positions of 5's in the decimal expansion of Euler's constant.

1, 6, 13, 22, 41, 45, 52, 57, 100, 124, 133, 154, 158, 160, 187, 189, 191, 207, 216, 221, 227, 235, 244, 247, 258, 261, 264, 275, 294, 298, 302, 306, 307, 309, 320, 331, 335, 340, 348, 364, 369, 388, 389, 412