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a(1) = 8; a(2n) = smallest prime that is a right concatenation of a(2n-1) and a number with no insignificant zeros and a(2n+1) = smallest prime ending in ( the least significant digits) a(2n-1). Alternate left and right concatenation yielding primes.
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%I #3 Dec 05 2013 19:55:16

%S 8,83,283,2833,32833,328331,2328331,232833127,3232833127,323283312749,

%T 14323283312749,1432328331274927,281432328331274927,

%U 28143232833127492741,3628143232833127492741,36281432328331274927411

%N a(1) = 8; a(2n) = smallest prime that is a right concatenation of a(2n-1) and a number with no insignificant zeros and a(2n+1) = smallest prime ending in ( the least significant digits) a(2n-1). Alternate left and right concatenation yielding primes.

%e a(4) = 2833 staring with a(3) =283 and a(5) = 32833 ending in a(4) = 2833.

%Y Cf. A053582, A069605, A069606, A069607, A069608, A069609, A069610, A069611, A069613, A069614, A069615, A069616, A069617, A069618, A069619.

%K nonn,base

%O 1,1

%A _Amarnath Murthy_, Mar 27 2002

%E More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Mar 30 2003