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A023499
a(n) = b(n) + d(n), where b(n) = ( (n+1)st Fibonacci number) and d(n) = (n-th number that is 1, 2, or 3, or is not a Lucas number).
+0
1
2, 4, 6, 10, 14, 21, 30, 44, 67, 102, 158, 248, 393, 627, 1006, 1617, 2605, 4203, 6788, 10970, 17736, 28683, 46395, 75053, 121423, 196449, 317843, 514262, 832074, 1346304, 2178345, 3524615, 5702925, 9227504, 14930392, 24157858
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Maintained by
N. J. A. Sloane
(
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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