1,11
Table of n, a(n) for n=1..36.
a(n) = (A047993(n) - A000700(n))/2
Cf. A000700, A000701, A047993.
Sequence in context: A001996 A122134 A035940 * A058686 A078374 A027590
Adjacent sequences: A067769 A067770 A067771 * A067773 A067774 A067775
easy,nonn
Naohiro Nomoto, Feb 06 2002
approved