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A109864 Least palindromic prime beginning with n, or 0 if no such prime exists. 3
11, 2, 3, 0, 5, 0, 7, 0, 919, 101, 11, 12421, 131, 14341, 151, 16061, 17471, 181, 191, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 30103, 313, 32323, 33533, 34543, 353, 36263, 373, 383, 39293, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: a(n) = 0 if and only if n > 3 and n begins with 2,4,6,8 or 5 (most significant digit).

LINKS

Table of n, a(n) for n=1..69.

CROSSREFS

Sequence in context: A040118 A099268 A070277 * A231433 A240454 A099756

Adjacent sequences:  A109861 A109862 A109863 * A109865 A109866 A109867

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Jul 08 2005

EXTENSIONS

Corrected and extended by Giovanni Resta, Feb 07 2006

STATUS

approved

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Last modified August 10 13:12 EDT 2022. Contains 356039 sequences. (Running on oeis4.)