1,1
Cf. A068340, A076542, A077030-A077033.
Sequence in context: A156475 A000907 A188718 * A137038 A024276 A137037
Adjacent sequences: A077028 A077029 A077030 * A077032 A077033 A077034
easy,nonn
Zak Seidov (zakseidov(AT)yahoo.com), Oct 21 2002