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A084180 Duplicate of A020988. 0
0, 2, 10, 42, 170, 682, 2730, 10922, 43690, 174762, 699050, 2796202, 11184810 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..12.

CROSSREFS

Sequence in context: A024483 A276666 A302524 * A020988 A177238 A084480

Adjacent sequences:  A084177 A084178 A084179 * A084181 A084182 A084183

KEYWORD

dead

STATUS

approved

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Last modified June 24 17:50 EDT 2019. Contains 324330 sequences. (Running on oeis4.)