A054282 Positions of 6's in the decimal expansion of exp(1).

21, 32, 33, 47, 57, 58, 60, 62, 70, 71, 96, 97, 105, 106, 130, 131, 150, 155, 167, 177, 234, 243, 246, 248, 249, 255, 261, 300, 309, 314, 316, 318, 343, 345, 350, 352, 386, 388, 401, 406, 419, 423, 445, 449, 451