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A020522
4^n - 2^n.
+0
15
0, 2, 12, 56, 240, 992, 4032, 16256, 65280, 261632, 1047552, 4192256, 16773120, 67100672, 268419072, 1073709056, 4294901760, 17179738112, 68719214592, 274877382656, 1099510579200, 4398044413952, 17592181850112
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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