1,2
Cf. A006907, A051748.
Sequence in context: A006906 A120940 A049940 * A030012 A001970 A006951
Adjacent sequences: A051746 A051747 A051748 * A051750 A051751 A051752
nonn,nice
JOHN MCKAY (mckay(AT)cs.concordia.ca), Dec 08 1999