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A074668 Differences between successive 7-digit distinct-digit primes. 10
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; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..64.

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.

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}]]

CROSSREFS

The seven-digit distinct-digit primes are in A074667.

Sequence in context: A161513 A162359 A161880 * A139620 A094311 A353895

Adjacent sequences:  A074665 A074666 A074667 * A074669 A074670 A074671

KEYWORD

fini,nonn,base

AUTHOR

Zak Seidov, Aug 30 2002

STATUS

approved

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Last modified May 18 06:07 EDT 2022. Contains 353783 sequences. (Running on oeis4.)