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A142873 A bisection of A142866. 1
1, 3, 12, 48, 210, 947, 4510, 22406, 116506 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..8.

CROSSREFS

Sequence in context: A103943 A283679 A165328 * A301578 A151168 A151169

Adjacent sequences:  A142870 A142871 A142872 * A142874 A142875 A142876

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Oct 03 2008

STATUS

approved

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Last modified June 18 18:52 EDT 2019. Contains 324215 sequences. (Running on oeis4.)