1,1
Cf. A027601, = A027609(n) + 1.
Sequence in context: A006647 A032126 A032176 this_sequence A024416 A076375 A113225
Adjacent sequences: A027597 A027598 A027599 this_sequence A027601 A027602 A027603
nonn
David W. Wilson (davidwwilson(AT)comcast.net)
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