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A000930
a(n) = a(n-1) + a(n-3).
(Formerly M0571 N0207)
+0
69
1, 1, 1, 2, 3, 4, 6, 9, 13, 19, 28, 41, 60, 88, 129, 189, 277, 406, 595, 872, 1278, 1873, 2745, 4023, 5896, 8641, 12664, 18560, 27201, 39865, 58425, 85626, 125491, 183916, 269542, 395033, 578949, 848491
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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