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A055519
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a_{k+1} = 9*a_k + 33*a_{k-1} - 76*a_{k-2} - 33*a_{k-3} + 9*a_{k-4} + a_{k-5}, a_1=1, a_2=2, a_3=35, a_4=312, a_5=3779, a_6=41590.
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3
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1, 2, 35, 312, 3779, 41590, 474169, 5342808, 60450145, 682988978, 7720432691, 87256315920, 986227664411, 11146765278382, 125986353493225, 1423957841588232, 16094263592763889, 181905138292910570
(list; graph; refs; listen; history; internal format)
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