A136441 Number of rotational symmetries in the binary expansion of a number with 0 appended to the front.

2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

Offset: 0

Author

Max Sills, Apr 03 2008

Keywords

• base
• easy
• nonn

Examples

			a(0) = 2 because 00 has two rotational symmetries; a(21) = 3 because 010101 has 3 rotational symmetries.
		

Links

• Gary Doran, Table of n, a(n) for n = 0..100

Crossrefs

Cf. A138904.