OFFSET
1,2
PROG
(Python)
from itertools import islice
from sympy import nextprime
def A079849_gen(): # generator of terms
aset2, alist, k, m = set(), [2], 2, 2
while (k:=nextprime(k)):
bset2 = set()
for a in alist:
if (b:=k-a) in aset2:
break
bset2.add(b)
else:
yield k-m
alist.append(m:=k)
aset2.update(bset2)
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Feb 18 2003
EXTENSIONS
Extended by Ray Chandler, Feb 11 2007
STATUS
approved