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A088086 a(1) = 2; then smallest palindrome > 1 not occurring earlier such that every partial concatenation is a prime. 2

%I

%S 2,3,9,11,313,33,9339,303,909,747,383,7,969,797,141,12721,1881,161,

%T 343,77,333,7227,181,737,30603,14841,12621,1111,15051,777,939,7887,

%U 7997,13231,191,79297,13331,11511,19191,38583,3993,949,17171,15351,318813

%N a(1) = 2; then smallest palindrome > 1 not occurring earlier such that every partial concatenation is a prime.

%e 2,23,239,23911, etc. are primes.

%Y Cf. A088087, A088084.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Sep 22 2003

%E More terms from _Sam Alexander_, Nov 17 2003

%E More terms from _David Wasserman_, Jul 13 2005

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Last modified September 27 19:34 EDT 2021. Contains 347694 sequences. (Running on oeis4.)