1,1
Subsequence of A144856 and of A046528. [From R. J. Mathar, Sep 17 2009]
Table of n, a(n) for n=1..9.
a(n)=A000668(n)*A000668(n+1). [From R. J. Mathar, Sep 17 2009]
Sequence in context: A060933 A075282 A228681 * A152161 A008421 A134585
Adjacent sequences: A165220 A165221 A165222 * A165224 A165225 A165226
nonn
Boris Hostnik (megpplus(AT)siol.net), Sep 08 2009
Extended by R. J. Mathar, Sep 17 2009
Offset corrected by N. J. A. Sloane, Sep 20 2009
approved