1,2

Comment from J. Lowell (jhbubby(AT)avana.net): Regular polygons with n sides in which internal angles have integral number of degrees (n >= 3).

Sequence in context: A018609 A029461 A128168 this_sequence A061945 A029509 A048645

Adjacent sequences: A018409 A018410 A018411 this_sequence A018413 A018414 A018415

nonn,fini,full

N. J. A. Sloane (njas(AT)research.att.com).