OFFSET
1,1
FORMULA
a(n) = 20p + 9, where p is the n-th prime. - Charles R Greathouse IV, Aug 25 2014
PROG
(PARI) a(n)=20*prime(n)+9 \\ Charles R Greathouse IV, Aug 25 2014
CROSSREFS
KEYWORD
nonn,base,easy,less
AUTHOR
Odimar Fabeny, Apr 24 2008
STATUS
approved