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A113575 Least (2n-1)-digit palindromic prime == 1 (mod n), or 0 if no such prime exists. 1
2, 101, 10501, 1003001, 100030001, 10000500001, 1000024200001, 100000323000001, 10000005750000001, 1000000008000000001, 100000005484500000001, 10000000004640000000001, 1000000001102011000000001, 100000000000131000000000001, 10000000000003830000000000001 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: No term is zero.

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

a(4) = 1003001 == 1 mod 4.

CROSSREFS

Cf. A113576.

Sequence in context: A035325 A266457 A028989 * A173640 A111012 A256516

Adjacent sequences:  A113572 A113573 A113574 * A113576 A113577 A113578

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Nov 06 2005

EXTENSIONS

More terms from R. J. Mathar, Aug 28 2007

STATUS

approved

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Last modified June 15 22:06 EDT 2021. Contains 345053 sequences. (Running on oeis4.)