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URL: https://oeis.org/history?seq=A123541

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a(0) = 2; for n > 0, a(n) = number of earlier terms which when added to n give a prime.
#9 by N. J. A. Sloane at Sun Dec 25 02:15:35 EST 2016
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#8 by Jon E. Schoenfield at Sun Dec 25 00:51:25 EST 2016
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#7 by Jon E. Schoenfield at Sun Dec 25 00:51:22 EST 2016
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#6 by Russ Cox at Fri Mar 30 17:22:43 EDT 2012
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Fri Mar 30
17:22
OEIS Server: https://oeis.org/edit/global/120
#5 by Russ Cox at Fri Mar 30 16:50:35 EDT 2012
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Fri Mar 30
16:50
OEIS Server: https://oeis.org/edit/global/110
#4 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010
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#3 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009
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#2 by N. J. A. Sloane at Fri May 11 03:00:00 EDT 2007
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#1 by N. J. A. Sloane at Wed Dec 06 03:00:00 EST 2006
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