OFFSET
1,2
EXAMPLE
n=5: a(5)=C[5,32]=1+32+1024+32768+1048576=1082401
MATHEMATICA
Table[Cyclotomic[w, 2^w], {w, 1, 15}]
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Labos Elemer, May 02 2002
STATUS
approved