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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
OFFSET
2,2
CROSSREFS
Sequence in context: A209841 A196927 A188209 * A280068 A304466 A228480
KEYWORD
nonn
EXTENSIONS
More terms from Sean A. Irvine, Oct 17 2019
STATUS
approved