1,2
No further terms between 550 and 12000. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 27 2009]
Cf. A004090, A060384
Sequence in context: A072993 A018444 A032378 this_sequence A112881 A008814 A005140
Adjacent sequences: A164944 A164945 A164946 this_sequence A164948 A164949 A164950
easy,nonn
Ctibor O. Zizka (c.zizka(AT)email.cz), Sep 01 2009
14 more terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 27 2009
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