A088650 a(n) is the smallest x such that A020498(k) + x is prime for all k = 1 to n.

1, 2, 4, 4, 4, 4, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10

Offset

1,2

Comments

Is the sequence finite?

Links

Table of n, a(n) for n=1..24.

Example

a(4)= 4 and the primes arising are 5, 7, 11, and 13.

Crossrefs

Cf. A020498.

Sequence in context: A220521 A236680 A162798 * A097154 A108421 A104058

Adjacent sequences: A088647 A088648 A088649 * A088651 A088652 A088653

Keyword

more,nonn,hard

Author

Amarnath Murthy, Oct 29 2003

Extensions

Corrected and extended by Max Alekseyev, Aug 23 2013

Status

approved