A090275 Beginning with 2, a(n+1) is the smallest palindromic prime obtained by placing identical digits on both sides of a(n).

2, 727, 37273, 333727333, 93337273339, 779333727333977, 3377933372733397733, 9993377933372733397733999, 111111199933779333727333977339991111111, 31111111999337793337273339773399911111113

Offset

0,1

Comments

The next term is probably 777777333111111199933779333727333977339991111111333777777. - Sam Alexander, Jan 06 2005

Links

Table of n, a(n) for n=0..9.

Crossrefs

Cf. A090276.

Sequence in context: A174368 A082621 A053600 * A090565 A332172 A072384

Adjacent sequences: A090272 A090273 A090274 * A090276 A090277 A090278

Keyword

base,nonn

Author

Amarnath Murthy, Nov 28 2003

Extensions

More terms from Sam Alexander, Jan 06 2005

Status

approved