OFFSET
0,1
COMMENTS
Here we are taking 1 to be the zeroth prime.
a(30) > 2570169839. - Donovan Johnson, Aug 31 2010
REFERENCES
Computed by David W. Wilson, Jun 29 2001.
EXAMPLE
a(1): 2=1+1, 3=1+2, 4=2+2, 5=1+4, 6=2+4, but 7 cannot be written as the sum of two positive integers whose prime factors are all <= 2, so a(1) = 7. a(2): 7=3+4, 8=4+4, 9=1+8, ..., 22=4+18, but 23 cannot be so written, so a(2) = 23.
CROSSREFS
KEYWORD
nonn,nice
AUTHOR
Richard C. Schroeppel, Jun 27 2001
EXTENSIONS
More terms from Jud McCranie, Nov 01 2001
a(23)-a(29) from Donovan Johnson, Aug 31 2010
STATUS
approved