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 A048400 Primes with consecutive digits that differ exactly by 3. 8
 2, 3, 5, 7, 41, 47, 14741, 14747, 74747, 1414741, 1474141, 7414741, 4141414747, 4147414147, 14141414141, 14141414741, 14141474741, 14141474747, 14147414741, 14147474141, 14147474147, 14741414747, 74141414147, 74141414741, 74147414741, 74741474741, 74747414141 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS All terms with more than a single digit must comprise only the digits 1, 4, and 7, because no number comprising the digits 2, 5, and 8 or the digits 3, 6, and 9 can be prime. - Harvey P. Dale, Mar 01 2023 LINKS Sean A. Irvine, Table of n, a(n) for n = 1..1000 MATHEMATICA Join[{2, 3, 5, 7}, Table[Select[FromDigits/@Tuples[{1, 4, 7}, n], PrimeQ[#]&& Union[ Abs[ Differences[ IntegerDigits[ #]]]]=={3}&], {n, 11}]//Flatten] (* Harvey P. Dale, Mar 01 2023 *) CROSSREFS Cf. A033081, A048398, A048399, A048401, A048402, A048403, A048404, A048405. Sequence in context: A110363 A235395 A090714 * A286319 A090716 A083820 Adjacent sequences: A048397 A048398 A048399 * A048401 A048402 A048403 KEYWORD nonn,base AUTHOR Patrick De Geest, Apr 15 1999 EXTENSIONS More terms from Naohiro Nomoto, Jul 28 2001 More terms from Sean A. Irvine, Jun 15 2021 STATUS approved

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Last modified September 28 06:53 EDT 2023. Contains 365724 sequences. (Running on oeis4.)