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A024506 a(n) = [ C(2n,n)/2^(n+3) ]. 0
0, 0, 0, 0, 0, 0, 1, 3, 6, 11, 22, 43, 82, 158, 306, 591, 1146, 2225, 4327, 8426, 16432, 32082, 62707, 122687, 240263, 470916, 923720, 1813228, 3561699, 7000581, 13767809 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,8

LINKS

Table of n, a(n) for n=0..30.

CROSSREFS

Sequence in context: A103322 A284474 A117075 * A068033 A293337 A293364

Adjacent sequences:  A024503 A024504 A024505 * A024507 A024508 A024509

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 5 07:33 EDT 2020. Contains 336209 sequences. (Running on oeis4.)