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 A107938 Numbers n such that n and n-th prime have only one common digit = 7. 5
 7, 37, 74, 75, 78, 107, 127, 247, 267, 270, 272, 274, 275, 276, 277, 367, 376, 387, 407, 417, 475, 476, 527, 557, 567, 577, 587, 597, 667, 678, 697, 700, 707, 710, 713, 718, 722, 723, 728, 731, 733, 760, 762, 770, 772, 774, 776, 784, 787, 789, 791, 792, 817 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 MATHEMATICA s={}; Do[If[IntegerDigits[n]\[Intersection]IntegerDigits[Prime[n]]\[Equal]{7}, s=Append[s, n]], {n, 3000}]; A107938=s Select[Range[1000], Intersection[IntegerDigits[#], IntegerDigits[Prime[ #]]] == {7}&] (* Harvey P. Dale, May 04 2020 *) CROSSREFS Cf. A107930 - A107940. Sequence in context: A337423 A031395 A138906 * A154105 A159491 A106064 Adjacent sequences: A107935 A107936 A107937 * A107939 A107940 A107941 KEYWORD nonn,base AUTHOR Zak Seidov, Jun 08 2005 STATUS approved

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Last modified May 22 02:24 EDT 2024. Contains 372741 sequences. (Running on oeis4.)