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A063106
Primes of form !n + 2n - 1.
1
2, 5, 17, 43, 887, 522956339, 20935051082417771847631371547939998232420940393
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..7.
PROG
(PARI) for(n=1, 50, x=sum(k=0, n-1, k!)+(2*n-1); if(isprime(x), print(x)))
CROSSREFS
Cf.
A003422
.
Sequence in context:
A076076
A136194
A056304
*
A096295
A215580
A275210
Adjacent sequences:
A063103
A063104
A063105
*
A063107
A063108
A063109
KEYWORD
nonn
AUTHOR
Jason Earls
, Aug 08 2001
STATUS
approved
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Last modified May 13 00:07 EDT 2024. Contains 372497 sequences. (Running on oeis4.)