OFFSET
1,1
COMMENTS
Original name: Values of n such that 4j = np+1 where p = 8x+1, x integer, p prime and j mod 3 = 0.
LINKS
EXAMPLE
For example, A007519(1)=17, 4j=17p+1 implies k is 7 and j is 30. The values that give 7 form the basis for solutions for the Erdős-Straus conjecture: 4/n=1/a+1/b+1/c for n >= 2, a,b,c>0 and integers.
CROSSREFS
KEYWORD
nonn
AUTHOR
Jon Perry, Oct 05 2001
EXTENSIONS
Entry revised by Sean A. Irvine, Jul 14 2023
STATUS
approved