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A015499
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a(0)=1, a(1)=11, a(n) = sum_{k=0}^{k=n-1} 11^k a(k).
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1
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1, 11, 122, 14884, 19825488, 290284795296, 46750946852011392, 82822200907043005634304, 1613970474494103062192651148288, 345968906493565448004393168763031894016, 815776584570266460972904878145357549417415811072
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OFFSET
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0,2
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LINKS
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FORMULA
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PROG
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(Magma) I:=[1, 11, 122]; [n le 3 select I[n] else (11^(n-2)+1)*Self(n-1): n in [1..15]]; // Vincenzo Librandi, Nov 11 2012
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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