1,2

Cf. A060448.

Sequence in context: A139405 A104862 A114471 this_sequence A050877 A063203 A130244

Adjacent sequences: A060633 A060634 A060635 this_sequence A060637 A060638 A060639

easy,nonn

Naohiro Nomoto (6284968128(AT)geocities.co.jp), Apr 15 2001