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A110774
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Copies of 1 and 3 alternately such that every partial concatenation is a prime.
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15
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OFFSET
| 1,1
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EXAMPLE
| 11, 113, 11311, etc. are primes.
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CROSSREFS
| Cf. A110775, A110776, A110777, A110778, A112534, A110780, A110781, A110782, A110783, A110788, A110789.
Sequence in context: A082769 A194706 A110435 * A067063 A075023 A205960
Adjacent sequences: A110771 A110772 A110773 * A110775 A110776 A110777
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KEYWORD
| base,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 12 2005
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EXTENSIONS
| The next term is too large to include.
Corrected and extended by Joshua Zucker, Jan 11 2006
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