A169829 Palindromes that are a product of consecutive primes.

1, 2, 3, 5, 6, 7, 11, 77, 101, 131, 151, 181, 191, 313, 323, 353, 373, 383, 727, 757, 787, 797, 919, 929, 1001, 5005, 10301, 10501, 10601, 11311, 11411, 12421, 12721, 12821, 13331, 13831, 13931, 14341, 14741, 15451, 15551, 16061, 16361, 16561, 16661

Offset: 1

Author

N. J. A. Sloane, May 30 2010

Keywords

• nonn
• base

Comments

Intersection of A002113 and A073485. - Reinhard Zumkeller, May 31 2010

Examples

			323 = 17*19.
		

Links

• Donovan Johnson, Table of n, a(n) for n = 1..5000
• Erich Friedman, What's Special About This Number? (See entry 1001.)

Crossrefs

Cf. A002113.

Programs

Mathematica

f[n_] := Select[ FoldList[ Times, 1, Prime[ Range[n, n + 4]]], # == FromDigits@ Reverse@ IntegerDigits@# &]; k = 1; lst = {}; While[k < 10^4, AppendTo[lst, f@k]; k++ ]; lst = Union@ Flatten@ lst (* Robert G. Wilson v, Jun 10 2010 *)

Extensions

More terms from Robert G. Wilson v and Jon E. Schoenfield, Jun 10 2010