0,2
a(n)=2*A090634(n).
Cf. A131136.
Sequence in context: A075216 A127790 A006730 this_sequence A134401 A036289 A097064
Adjacent sequences: A131132 A131133 A131134 this_sequence A131136 A131137 A131138
easy,nonn
Paul Barry (pbarry(AT)wit.ie), Jun 17 2007
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