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A083100
a(n)=2a(n-1)+7a(n-2).
+0
19
1, 9, 25, 113, 401, 1593, 5993, 23137, 88225, 338409, 1294393, 4957649, 18976049, 72655641, 278143625, 1064876737, 4076758849, 15607654857, 59752621657, 228758827313, 875786006225, 3352883803641, 12836269650857, 49142725927201
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Maintained by
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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.
AT&T Labs Research
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