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A056123
a(n)=3a(n-1)-a(n-2); a(0)=1, a(1)=11.
+0
1
1, 11, 32, 85, 223, 584, 1529, 4003, 10480, 27437, 71831, 188056, 492337, 1288955, 3374528, 8834629, 23129359, 60553448, 158530985, 415039507, 1086587536, 2844723101, 7447581767, 19498022200, 51046484833, 133641432299
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Maintained by
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Last modified December 6 13:45 EST 2009. Contains 170429 sequences.
AT&T Labs Research
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