0,1
Cf. A061153-A061158.
Sequence in context: A156612 A096801 A072407 * A180843 A085979 A127327
Adjacent sequences: A061155 A061156 A061157 * A061159 A061160 A061161
nonn
Patrick De Geest (pdg(AT)worldofnumbers.com), Apr 15 2001.