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A026948
a(n) = Sum_{k=0..n-2} T(n,k) * T(n,k+2), with T given by A026374.
0
1, 8, 58, 272, 1770, 7428, 46928, 189808, 1185645, 4724160, 29362806, 116207424, 720606705, 2842936320, 17610412600, 69378730880, 429579843435, 1691519468760, 10472653252550, 41235710124400, 255326054688320, 1005560117623204, 6227515552731528, 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: A002402 A015464 A144781 * A111585 A055839 A297097
Adjacent sequences: A026945 A026946 A026947 * A026949 A026950 A026951
KEYWORD
nonn
AUTHOR
Clark Kimberling
EXTENSIONS
More terms from Sean A. Irvine, Oct 17 2019
STATUS
approved

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Last modified November 7 15:02 EST 2024. Contains 377536 sequences.
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