cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-4 of 4 results.

A235155 Primes which have one or more occurrences of exactly three different digits.

Original entry on oeis.org

103, 107, 109, 127, 137, 139, 149, 157, 163, 167, 173, 179, 193, 197, 239, 241, 251, 257, 263, 269, 271, 281, 283, 293, 307, 317, 347, 349, 359, 367, 379, 389, 397, 401, 409, 419, 421, 431, 439, 457, 461, 463, 467, 479, 487, 491, 503, 509, 521, 523, 541, 547
Offset: 1

Views

Author

Colin Barker, Jan 04 2014

Keywords

Comments

The first term having a repeated digit is 1009.

Links

Crossrefs

Cf. A235154, A235156, A235157, A235158, A235159, A235160, A235161.
Cf. A074675.

Programs

  • MATLAB
    %See Conrey Link
  • Mathematica
    Select[Prime[Range[200]],Count[DigitCount[#],0]==7&] (* Harvey P. Dale, Jul 27 2020 *)
  • PARI
    s=[]; forprime(n=100, 1000, if(#vecsort(eval(Vec(Str(n))),,8)==3, s=concat(s, n))); s

A235158 Primes which have one or more occurrences of exactly six different digits.

Original entry on oeis.org

102359, 102367, 102397, 102437, 102497, 102539, 102547, 102563, 102587, 102593, 102643, 102647, 102653, 102673, 102679, 102763, 102769, 102793, 102859, 102953, 102967, 102983, 103289, 103457, 103529, 103549, 103567, 103657, 103687, 103769, 103867, 103967
Offset: 1

Views

Author

Colin Barker, Jan 04 2014

Keywords

Comments

The first term having a repeated digit is 1002347.

Links

Crossrefs

Cf. A074669, A235154-A235157, A235159-A235161.

Programs

  • PARI
    s=[]; forprime(n=100000, 105000, if(#vecsort(eval(Vec(Str(n))),,8)==6, s=concat(s, n))); s

A235156 Primes which have one or more occurrences of exactly four different digits.

Original entry on oeis.org

1039, 1049, 1063, 1069, 1087, 1093, 1097, 1237, 1249, 1259, 1279, 1283, 1289, 1297, 1307, 1327, 1367, 1409, 1423, 1427, 1429, 1439, 1453, 1459, 1483, 1487, 1489, 1493, 1523, 1543, 1549, 1567, 1579, 1583, 1597, 1607, 1609, 1627, 1637, 1657, 1693, 1697, 1709
Offset: 1

Views

Author

Colin Barker, Jan 04 2014

Keywords

Comments

The first term having a repeated digit is 10037.

Links

Crossrefs

Cf. A235154, A235155, A235157-A235161.
Cf. A074673.

Programs

  • PARI
    s=[]; forprime(n=1000, 2000, if(#vecsort(eval(Vec(Str(n))),,8)==4, s=concat(s, n))); s

A057881 Primes with 5 distinct digits that remain prime (no leading zeros allowed) after deleting all occurrences of its digits d.

Original entry on oeis.org

37019, 159013, 198013, 210139, 223697, 226397, 236297, 1305593, 1388693, 1393697, 1900937, 1912831, 2370673, 2796337, 2882093, 2930773, 3200191, 3202139, 3346199, 3442693, 3463199, 3463619, 3746399, 3769133, 4234039
Offset: 1

Views

Author

Patrick De Geest, Oct 15 2000

Keywords

Comments

Numbers in A057876 with exactly 5 distinct digits.

Crossrefs

Intersection of A057876 and A235157.
Cf. A057876-A057883, A051362, A034302-A034305.

Extensions

Offset changed by Andrew Howroyd, Aug 14 2024
Showing 1-4 of 4 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.