OFFSET
1,2
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..465
MATHEMATICA
Table[2^(Prime[n] - 2), {n, 1, 25}] (* G. C. Greubel, Oct 23 2016 *)
PROG
(Magma) [2^(NthPrime(n)-2): n in [1..25]]; // Vincenzo Librandi, Oct 23 2016
(PARI) a(n) = 2^(prime(n)-2); \\ Michel Marcus, Oct 23 2016
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Omar E. Pol, Mar 01 2008
STATUS
approved