A249953 - OEIS

A249953

Primes with distinct digits: a(n) is the least prime > a(n-1) such that a(n-1) and a(n) share just one digit.

13, 17, 19, 29, 59, 79, 89, 97, 107, 139, 157, 163, 179, 239, 241, 257, 263, 271, 283, 307, 349, 367, 389, 409, 421, 439, 457, 461, 479, 509, 521, 547, 563, 571, 593, 613, 647, 653, 691, 701, 739, 751, 769, 809, 821, 839, 857, 863, 937, 941, 953, 967, 983, 1049, 1237, 1409, 1523, 1607

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OFFSET

1,1

COMMENTS

The last term is a(163) = 102437.

LINKS

Zak Seidov, Table of n, a(n) for n = 1..163

MATHEMATICA

a249953[n_Integer] := Module[{t = {1}, i},

Do[If[And[DuplicateFreeQ[IntegerDigits[Prime[i]]],

Length[Intersection[IntegerDigits[Last@t],

IntegerDigits[Prime[i]]]] == 1], True;

t = Append[t, Prime[i]]], {i, 1, n}]; Rest[t]]; a249953[120000] (* Michael De Vlieger, Dec 14 2014 *)

lp1d[n_]:=Module[{p=NextPrime[n]}, While[Length[Intersection[ IntegerDigits[ n], IntegerDigits[p]]]!=1||!DuplicateFreeQ[ IntegerDigits[ p]], p= NextPrime[ p]]; p]; NestList[lp1d, 13, 60] (* Harvey P. Dale, May 31 2019 *)

CROSSREFS

Subsequence of A029743.

Cf. A030284.

Sequence in context: A339912 A099184 A098095 * A180530 A059500 A104213

Adjacent sequences: A249950 A249951 A249952 * A249954 A249955 A249956

KEYWORD

nonn,base,fini,full

AUTHOR

Zak Seidov, Dec 05 2014

STATUS

approved