1,1
Cf. A020582. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 26 2008]
Sequence in context: A023238 A194991 A049042 * A045348 A023207 A038611
Adjacent sequences: A020602 A020603 A020604 * A020606 A020607 A020608
nonn,fini,full
David W. Wilson (davidwwilson(AT)comcast.net)