1,1
See A111105 for further information.
Sequence in context: A069330 A160206 A111105 * A185377 A118059 A028500
Adjacent sequences: A137556 A137557 A137558 * A137560 A137561 A137562
nonn
R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 20 2008