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A026076
a(n) = T(2n,n-1), where T is the array defined in A024996.
0
1, 2, 12, 62, 339, 1882, 10594, 60216, 344846, 1986620, 11499940, 66835540, 389741279, 2279233530, 13362109050, 78505098150, 462109616730, 2724728263348, 16089931091944, 95141866318652
OFFSET
1,2
CROSSREFS
Sequence in context: A125831 A289787 A226506 * A361812 A231025 A330387
KEYWORD
nonn
STATUS
approved