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a(1) = 2; then the sequence of smallest primes (no zero digits to avoid ambiguity) not included earlier the concatenation of which is the cyclic pattern 23456789123456789123...
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%I #5 Dec 05 2013 19:55:13

%S 2,3,4567,89,1234567891,23,4567891,23456789,

%T 1234567891234567891234567891,23456789123456789,

%U 1234567891234567891234567891234567891234567891234567891234567891234567,89123,4567891234567

%N a(1) = 2; then the sequence of smallest primes (no zero digits to avoid ambiguity) not included earlier the concatenation of which is the cyclic pattern 23456789123456789123...

%C a(14)=89123456789123...789123 (527 digits), a(15)= 4567891234567891234567891, a(16)=23456789123456789123, a(17)=4...1 (61 digits) and a(18)=2...3 (38 digits). a(9) through a(11) and a(13) through a(18) have been certified prime with Primo. a(19)=4... has at least 2700 digits. - Rick L. Shepherd

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Mar 08 2002

%E More terms from _Rick L. Shepherd_, May 25 2002