A095217 Greatest prime divisor of n-th partial concatenation is prime(n).

2, 7, 795302832777615

Offset

1,1

Links

Table of n, a(n) for n=1..3.

Example

Greatest prime divisor of 27795302832777615 which is a concatenation of first four terms 2,7,795302832777615 is prime(3) = 5, 27795302832777615= 3^33*5.

Crossrefs

Cf. A095216.

Sequence in context: A077548 A050809 A246516 * A230915 A242922 A242530

Adjacent sequences: A095214 A095215 A095216 * A095218 A095219 A095220

Keyword

base,more,nonn,bref

Author

Amarnath Murthy, Jun 10 2004

Status

approved