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A090272 Take each palindrome ending in 1, 3, 7, or 9 and find smallest prime formed by the digits of that palindrome, followed by a string of digits, followed by the palindrome again. 2

%I #6 Dec 05 2013 19:56:37

%S 11,313,727,919,11311,33533,77377,990599,10101101,1114111,1212121,

%T 1311131,1411141,1513151,1611161,1712171,18102181,1917191,30301303,

%U 3135313,3233323,3331333,3439343,35301353,3635363,3732373,3836383

%N Take each palindrome ending in 1, 3, 7, or 9 and find smallest prime formed by the digits of that palindrome, followed by a string of digits, followed by the palindrome again.

%e Prime pertaining to 11 is 11311 and that pertaining to 99 is 990599.

%Y Cf. A090270, A090272.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Nov 28 2003

%E More terms from _Joshua Zucker_, May 03 2006

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Last modified April 24 14:53 EDT 2024. Contains 371960 sequences. (Running on oeis4.)