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A074613
4^n + 7^n.
+0
1
2, 11, 65, 407, 2657, 17831, 121745, 839927, 5830337, 40615751, 283523825, 1981521047, 13858064417, 96956119271, 678491508305, 4748635251767, 33237225536897, 232647693856391, 1628482317387185, 11399170063280087
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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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