1,2
Cf. A033286. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 22 2008]
Sequence in context: A164000 A134978 A115742 * A144519 A066995 A180953
Adjacent sequences: A026099 A026100 A026101 * A026103 A026104 A026105
nonn
Clark Kimberling (ck6(AT)evansville.edu)