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A104914
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Numbers n such that the string 987654321n is prime.
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1
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1, 7, 37, 67, 77, 91, 109, 113, 133, 193, 197, 223, 317, 319, 331, 347, 371, 397, 403, 449, 491, 529, 569, 571, 587, 611, 623, 649, 673, 737, 743, 757, 767, 769, 851, 883, 893, 917, 919, 931, 989, 991, 1001, 1019, 1021, 1033, 1081, 1091, 1121, 1127, 1141
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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PROG
| (MAGMA) [ n: n in [1..1750] | IsPrime(Seqint(Intseq(n) cat [1, 2, 3, 4, 5, 6, 7, 8, 9])) ]; // From Vincenzo Librandi, Feb 02 2011
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CROSSREFS
| Cf. A104915.
Sequence in context: A093389 A093342 A086110 * A032588 A123084 A123085
Adjacent sequences: A104911 A104912 A104913 * A104915 A104916 A104917
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KEYWORD
| nonn,base
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Mar 29 2005
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