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A110792
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Copies of 7,3 and 1 cyclically such that every partial concatenation is a prime.
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1
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7, 3, 1111111, 777777777, 33, 11111111111111111111111111111111111111111111111111111111111111111, 7777777777777777777, 33333333333333333333, 111111111111111111111111111111111111111
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| 7,73,731111111,...are all prime.
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CROSSREFS
| Cf. A110774, A110775, A110776, A110777, A110778, A110779, A110780, A110781, A110782, A110783, A110788, A110789, A110790, A110791, A110793.
Sequence in context: A086453 A112099 A013324 * A175998 A093825 A091494
Adjacent sequences: A110789 A110790 A110791 * A110793 A110794 A110795
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KEYWORD
| base,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 13 2005
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EXTENSIONS
| More terms from Sean A. Irvine (sairvin(AT)xtra.co.nz), Mar 21 2010
a(9) from Jon Schoenfield, Jul 11 2010
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