A037375 Numbers n such that every base 2 digit of n is a base 6 digit of n.

1, 6, 7, 31, 36, 37, 38, 39, 40, 41, 42, 48, 54, 60, 63, 66, 73, 78, 109, 114, 127, 145, 150, 181, 186, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241