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Search: id:A006183
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| A006183 |
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a(n) = (n+1)*a(n-1) + (2-n)*a(n-2). (Formerly M1663)
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+0 4
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| 2, 6, 22, 98, 522, 3262, 23486, 191802, 1753618, 17755382, 197282022, 2387112466, 31249472282, 440096734638, 6635304614542, 106638824162282, 1819969265702946, 32873194861759462, 626524419718239158
(list; graph; listen)
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