1,2
Cf. A066897.
Sequence in context: A116036 A032397 A028879 * A104294 A171566 A137270
Adjacent sequences: A067564 A067565 A067566 * A067568 A067569 A067570
easy,nonn
Naohiro Nomoto (n_nomoto(AT)yabumi.com), Jan 30 2002