0,2
a(n) = 2*A005728(n) if n>=1 . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 05 2008
Cf. A049643, A005728.
Sequence in context: A076924 A103801 A141247 this_sequence A061227 A000066 A061645
Adjacent sequences: A049629 A049630 A049631 this_sequence A049633 A049634 A049635
nonn
Clark Kimberling (ck6(AT)evansville.edu)
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