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8, 78, 848, 9318, 102488, 1127358, 12400928, 136410198, 1500512168, 16505633838, 181561972208, 1997181694278, 21968998637048, 241658985007518, 2658248835082688, 29240737185909558, 321648109045005128, 3538129199495056398
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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LINKS
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FORMULA
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a(n) = 11*a(n-1)-10.
a(n) = 12*a(n-1)-11*a(n-2).
G.f.: 2*(4-9*x)/((1-x)*(1-11*x)).
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PROG
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(Magma) [7*11^n+1: n in [0..30]];
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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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