A062222 Numbers k such that the smoothly undulating palindromic number (73*10^k - 37)/99 is a prime.

15, 39, 567, 2529, 14337

Offset: 1

Author

Patrick De Geest and Hans Rosenthal (Hans.Rosenthal(AT)t-online.de), Jun 15 2001

Keywords

• nonn
• base
• more

Comments

Prime versus probable prime status and proofs are given in the author's table.

No further terms < 100000. - Ray Chandler, Aug 17 2011

Examples

			k=15 -> (73*10^15 - 37)/99 = 737373737373737.
		

Links

• Patrick De Geest, SUPP Reference Table - 737
• Index entries for sequences related to smoothly undulating palindromic primes

Crossrefs

Cf. A062209-A062232, A059758, A032758.

Extensions

Edited by Ray Chandler, Aug 17 2011