A274133 Numbers representable as ror(x)+rol(x) in two or more ways, where ror(x)=A038572(x) is x rotated one binary place to the right, rol(x)=A006257(x) is x rotated one binary place to the left.
2, 9, 14, 15, 20, 27, 32, 37, 42, 47, 52, 57, 62, 129, 134, 139, 144, 149, 154, 159, 164, 169, 174, 179, 184, 189, 194, 195, 199, 200, 204, 205, 209, 210, 214, 215, 219, 220, 224, 225, 229, 230, 234, 235, 239, 240, 244, 245, 249, 250, 254, 255, 260, 265, 270, 275
Offset: 1
Examples
ror(5) + rol(5) = 6 + 3 = 9, and also ror(16) + rol(16) = 8 + 1 = 9, therefore 9 is in the sequence.
Comments