OFFSET
1,1
EXAMPLE
2
3 9
5 10 15
7 14 21 42
11 22 33 44 55
13 26 39 52 65 117
17 34 51 68 85 102 119
...
PROG
(PARI) for(n=1, 20, p=prime(n); for(k=1, n-1, print1(k*p, ", ")); s=p*((n-1)*n)/2; k=n; while(denominator((s+k*p)/n)>1, k++); print(k*p, ", ")) (Herrgesell)
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Amarnath Murthy, Apr 26 2003
EXTENSIONS
More terms and better description from Lambert Herrgesell (zero815(AT)googlemail.com), Dec 30 2005
STATUS
approved