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A057085
a(0)=0, a(1)=1; for n>1, a(n)=9a(n-1)-9a(n-2).
+0
6
0, 1, 9, 72, 567, 4455, 34992, 274833, 2158569, 16953624, 133155495, 1045816839, 8213952096, 64513217313, 506693386953, 3979621526760, 31256353258263, 245490585583527, 1928108090927376, 15143557548094641, 118939045114505385
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.
AT&T Labs Research
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