1,2
Table of n, a(n) for n=1..5.
Sequence in context: A143968 A097424 A032019 * A175814 A156498 A211169
Adjacent sequences: A181176 A181177 A181178 * A181180 A181181 A181182
nonn
H Gee (harry987(AT)live.com.au), Oct 08 2010
approved