A079803 A079802(n)/A079802(n-1).

4, 6, 17, 91, 31455, 1397917365

Offset

2,1

Links

Table of n, a(n) for n=2..7.

Prog

(PARI) p=2; s=p; while(s<10^9, p=nextprime(p+1); a=p; while(a%s>0, p=nextprime(p+1); a=a+p); print1(a/s, ", "); s=a)

Crossrefs

Cf. A079802, A079804, A079805.

Sequence in context: A302878 A270270 A211949 * A061361 A332986 A113610

Adjacent sequences: A079800 A079801 A079802 * A079804 A079805 A079806

Keyword

more,nonn

Author

Amarnath Murthy, Feb 05 2003

Extensions

Edited and extended by Klaus Brockhaus, Feb 13 2003

Status

approved