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A099746 Primes arising in A099744. 2
10301, 10501, 10601, 1022201, 1028201, 1035301, 1043401, 1055501, 1062601, 1065601, 1074701, 1082801, 1085801, 1092901, 1093901, 101030101, 101060101, 101141101, 101171101, 101282101, 101292101, 101343101, 101373101, 101414101 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Prompted by Harvey Dubner's Nov 07 2004 discovery that 10000...000M000...00001 with M=3761673, a palindrome, is a 130023-digit palindromic prime.

LINKS

Table of n, a(n) for n=1..24.

MATHEMATICA

p = Select[ Range[ 22322], # == FromDigits[ Reverse[ IntegerDigits[ # ]]] &]; q = Select[p, PrimeQ[ FromDigits[ Join[{1, 0}, IntegerDigits[ # ], {0, 1}]]] &]; Table[ FromDigits[ Join[{1, 0}, IntegerDigits[ q[[n]]], {0, 1}]], {n, 24}]; (* Robert G. Wilson v, Nov 20 2004 *)

CROSSREFS

Cf. A099744, A100026, A100027.

Sequence in context: A227410 A227411 A100502 * A083438 A212939 A237924

Adjacent sequences:  A099743 A099744 A099745 * A099747 A099748 A099749

KEYWORD

nonn,easy,base

AUTHOR

N. J. A. Sloane, Nov 19 2004

EXTENSIONS

More terms from Robert G. Wilson v, Nov 20 2004

STATUS

approved

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Last modified January 20 16:32 EST 2022. Contains 350472 sequences. (Running on oeis4.)