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A062969 d(n)-n-1 is prime. +0
2
3, 4, 6, 8, 9, 10, 12, 14, 18, 22, 24, 25, 26, 28, 30, 34, 46, 49, 52, 54, 62, 66, 72, 74, 76, 78, 80, 82, 84, 86, 90, 104, 106, 108, 110, 112, 114, 134, 138, 142, 150, 160, 166, 169, 170, 172, 174, 176, 180, 186, 192, 194, 202, 204, 208, 214, 226, 230, 234, 244, 246 (list; graph; listen)
OFFSET

1,1

EXAMPLE

numdiv(300)-300-1 = -283, absolute value of which is prime.

PROGRAM

(PARI) j=[]; for(n=1, 300, if(isprime(numdiv(n)-n-1), j=concat(j, n))); j

CROSSREFS

Cf. A062968.

Adjacent sequences: A062966 A062967 A062968 this_sequence A062970 A062971 A062972

Sequence in context: A118300 A134745 A112800 this_sequence A025063 A050849 A039008

KEYWORD

easy,nonn

AUTHOR

Jason Earls (jcearls(AT)cableone.net), Jul 23 2001

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.


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