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A074668
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Differences between successive 7-digit distinct-digit primes.
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9
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20, 210, 72, 88, 90, 410, 22, 200, 10, 104, 4, 86, 70, 104, 6, 24, 360, 136, 210, 56, 40, 50, 34, 24, 462, 80, 18, 22, 68, 36, 4, 6, 254, 6, 6, 84, 4, 512, 24, 6, 4, 56, 94, 50, 160, 584, 36, 6, 90, 10, 18, 50, 102, 204, 4, 510, 6, 14, 60, 16, 20, 60, 4, 6
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| a(1)=20 & a(2)=210 because first three 7-digit distinct-digit primes are 1023467, 1023487, 1023697 and differences between them are 20 and 210.
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MATHEMATICA
| a=1023451; b=a+8000; se7 = Select[Range[a, b, 2], Length[Union[IntegerDigits[ # ]]] == 7 && PrimeQ[ # ] & ]; Flatten[Table[{se7[[i+1]]-se7[[i]]}, {i, Length[se7]-1}]]
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CROSSREFS
| The seven-digit distinct-digit primes are in A074667.
Sequence in context: A161513 A162359 A161880 * A139620 A094311 A162640
Adjacent sequences: A074665 A074666 A074667 * A074669 A074670 A074671
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KEYWORD
| fini,nonn,base
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Aug 30 2002
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