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A051945
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C(n)*(5n+1) where C(n) = Catalan numbers (A000108).
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5
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1, 6, 22, 80, 294, 1092, 4092, 15444, 58630, 223652, 856596, 3292016, 12688732, 49031400, 189885240, 736808220, 2863971270, 11149451940, 43465121700, 169657266240, 662976162420
(list; graph; refs; listen; history; internal format)
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