OFFSET
1,2
COMMENTS
The sequence is conjectured to be finite and full in A046927. The conjecture holds through 10^9.
EXAMPLE
For 59, (p,q) can be (13,23), (37,11), and (53,3). 59 + 2 * 13, 59 + 2 * 23, ... 59 + 2 * 3 are all composite, so 59 is in the sequence.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Jud McCranie, Oct 09 2020
STATUS
approved