1,2
Cf. A071890, A071889, A071888.
Sequence in context: A012684 A053587 A052346 * A069440 A000431 A207019
Adjacent sequences: A071890 A071891 A071892 * A071894 A071895 A071896
nonn,more
Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 10 2002