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A026333
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a(n) = T(3n,n), where T is the array in A026323.
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0
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1, 3, 21, 156, 1221, 9828, 80579, 669273, 5612505, 47416278, 402953376, 3440825160, 29498259546, 253737784446, 2188855109385, 18928808608996, 164046653525181
(list; graph; refs; listen; history; internal format)
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