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A072532
a(0)=1; for n>0, a(n) = smallest prime of the form k*a(n-1)-1 with k>1.
+0
4
1, 2, 3, 5, 19, 37, 73, 1021, 8167, 16333, 326659, 3919907, 47038883, 188155531, 2257866371, 76767456613, 1535349132259, 12282793058071, 147393516696851, 4127018467511827, 107302480155307501, 1502234722174305013
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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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