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A019476
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a(n) = 5*a(n-1) + a(n-2) - 2*a(n-3).
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0
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2, 10, 51, 261, 1336, 6839, 35009, 179212, 917391, 4696149, 24039712, 123059927, 629947049, 3224715748, 16507405935, 84501851325, 432567231064, 2214323194775, 11335179502289, 58025086244092
(list; graph; refs; listen; history; internal format)
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