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A027126
a(n) = A027113(n, 2n-8).
0
1, 2, 7, 24, 81, 274, 923, 3087, 10232, 33587, 109190, 351730, 1123465, 3561045, 11210036, 35073033, 109137568, 337969627, 1042129366, 3201226811, 9800475386, 29914121676, 91063951213, 276556071836, 838101477953
OFFSET
4,2
CROSSREFS
Sequence in context: A215694 A027124 A038765 * A027128 A099463 A021000
KEYWORD
nonn
STATUS
approved