The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A048401 Primes with consecutive digits that differ exactly by 4. 8
 2, 3, 5, 7, 37, 59, 73, 151, 373, 15959, 95959, 515951, 595159, 595951, 9515959, 51515159, 159595151, 159595951, 5151515951, 5159515159, 5159515951, 5951515151, 5951515951, 5959515151, 5959595951, 15151595951, 15951515159 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Sean A. Irvine, Table of n, a(n) for n = 1..1000 MATHEMATICA pd[{a_, b_, c___}]:=Flatten[Table[Select[FromDigits/@Select[Tuples[ {a, b, c}, n], Union[Abs[Differences[#]]]=={4}&], PrimeQ], {n, 11}]]; Union[Join[{2, 3, 5, 7}, pd[{1, 5, 9}], pd[{3, 7}]]] (* Harvey P. Dale, Aug 23 2011 *) CROSSREFS Cf. A048398, A048399, A048400, A048402, A048403, A048404, A048405, A048406. Sequence in context: A090713 A090912 A048416 * A288718 A289861 A160748 Adjacent sequences:  A048398 A048399 A048400 * A048402 A048403 A048404 KEYWORD nonn,base AUTHOR Patrick De Geest, Apr 15 1999 EXTENSIONS More terms from Naohiro Nomoto, Jul 28 2001 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 10 04:27 EDT 2022. Contains 356029 sequences. (Running on oeis4.)