1,3
Cf. A133500, A135381, A135382.
Sequence in context: A194907 A090106 A167662 * A032521 A044921 A193989
Adjacent sequences: A135380 A135381 A135382 * A135384 A135385 A135386
nonn,base
J. H. Conway and N. J. A. Sloane (njas(AT)research.att.com), Dec 10 2007