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A068826
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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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0
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2, 3, 4567, 89, 1234567891, 23, 4567891, 23456789, 1234567891234567891234567891, 23456789123456789, 1234567891234567891234567891234567891234567891234567891234567891234567, 89123, 4567891234567
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OFFSET
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1,1
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COMMENTS
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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
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LINKS
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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