1,1
Table of n, a(n) for n=1..22.
Sequence in context: A077765 A078400 A068951 * A004088 A126051 A115260
Adjacent sequences: A139749 A139750 A139751 * A139753 A139754 A139755
base,easy,nonn,less
Ctibor O. Zizka, May 19 2008
approved