|
|
A167629
|
|
The odd composites n such that n=q*g*j*y/2 and q+g=j*y where q,g,j,y are distinct primes.
|
|
1
|
|
|
105, 195, 231, 399, 627, 897, 935, 1023, 1443, 1581, 1729, 2465, 2915, 2967, 4123, 4301, 4623, 4715, 5487, 7055, 7685, 7881, 8099, 9717, 10707, 11339, 12099, 12995, 14993, 16377, 16383, 17353, 17423, 19599, 20213, 20915, 23779, 24963, 25327
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
EXAMPLE
|
a(1)=3*7*5=105 (q=3, g=7, j=2, y=5); a(2)=13*3*5=195 (q=2, g=13, j=3, y=5); a(3)=3*11*7=231 (q=3, g=11, j=2, y=7); a(4)=19*3*7=329 (q=2, g=19, j=3, y=7); a(5)=3*19*11=627 (q=3, g=19, j=2, y=11).
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|