1,1
180 is probably the last term. This sequence is a subset of A141098. See A141095.
Sequence in context: A074121 A175088 A055670 * A089257 A113451 A029709
Adjacent sequences: A141093 A141094 A141095 * A141097 A141098 A141099
nonn
T. D. Noe (noe(AT)sspectra.com), Jun 02 2008