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A014434
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Sum[ a[ i ]a[ n-i ],{i,0,n-1} ], a[ 0 ] == 1, a[ 1 ]==5.
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1
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1, 5, 5, 30, 80, 405, 1505, 7255, 31155, 149455, 688655, 3334880, 15965130, 78294155, 383599455, 1903940030, 9474093880, 47514889255, 239112929655, 1209724381330, 6140755848280, 31294613247255, 159963286607755
(list; graph; refs; listen; history; internal format)
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