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A068135 Smallest prime ending in reverse concatenation of first n natural numbers. 1

%I #2 Dec 05 2013 19:55:10

%S 11,421,1321,14321,154321,16654321,37654321,1487654321,28987654321,

%T 310987654321,21110987654321,11121110987654321,113121110987654321,

%U 11413121110987654321,10151413121110987654321,3416151413121110987654321

%N Smallest prime ending in reverse concatenation of first n natural numbers.

%K base,easy,nonn

%O 1,1

%A _Amarnath Murthy_, Feb 22 2002

%E More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 01 2003

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Last modified August 22 21:27 EDT 2024. Contains 375369 sequences. (Running on oeis4.)