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A026953 a(n) = Sum_{k=0..n-2} T(n,k) * T(n,k+2), with T given by A026386. 0
1, 8, 41, 272, 1168, 7428, 30302, 189808, 759101, 4724160, 18728841, 116207424, 458829051, 2842936320, 11203933255, 69378730880, 273211969075, 1691519468760, 6660034471595, 41235710124400, 162381981186970, 1005560117623204, 3961069262796800, 24534901740913872 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..25.

CROSSREFS

Sequence in context: A209841 A196927 A188209 * A280068 A304466 A228480

Adjacent sequences:  A026950 A026951 A026952 * A026954 A026955 A026956

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Sean A. Irvine, Oct 17 2019

STATUS

approved

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Last modified August 19 04:31 EDT 2022. Contains 356216 sequences. (Running on oeis4.)