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A026295
a(n) = T(2n,n-1), where T is the array in A026268.
1
1, 3, 14, 72, 385, 2110, 11757, 66298, 377245, 2161771, 12458186, 72130114, 419239101, 2444741300, 14296415880, 83807317674, 492339686501, 2897788821746, 17084275066796, 100873614561368
OFFSET
1,2
CROSSREFS
Sequence in context: A191649 A009637 A098648 * A118650 A377113 A180187
KEYWORD
nonn
STATUS
approved