OFFSET
1,1
COMMENTS
LINKS
Michel Marcus, Table of n, a(n) for n = 1..100
Walter E. Mientka and Roger C. Weitzenkamp, On f-plentiful numbers, Journal of Combinatorial Theory, Volume 7, Issue 4, December 1969, Pages 374-377
EXAMPLE
27 is here because 27-4 and 27-16 are primes.
MATHEMATICA
lst={}; Do[k=1; While[p=n-4^k; p>0 && PrimeQ[p], k++ ]; If[p<=0, AppendTo[lst, n]], {n, 5, 10^7}]; lst
CROSSREFS
KEYWORD
nonn
AUTHOR
T. D. Noe, Nov 18 2004
STATUS
approved