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A002501
7^n-3*4^n+2*3^n.
(Formerly M5078 N2197)
+0
14
1, 19, 205, 1795, 14221, 106819, 778765, 5581315, 39606541, 279447619, 1965098125, 13792018435, 96690872461, 677427332419, 4744368982285, 33220131761155, 232579232659981, 1628208214321219, 11398072876175245
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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 15 00:47 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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