OFFSET
1,1
MATHEMATICA
Select[Range[1, 1901, 2], DivisorSigma[1, #]DivisorSigma[0, #]>Prime[2#]&] (* Harvey P. Dale, Feb 17 2015 *)
PROG
(PARI) for(n=1, 2200, if(sigma(n)*numdiv(n)*(1-(-1)^n)/2>prime(2*n), print1(n, ", ")))
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Feb 28 2002
STATUS
approved