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 1-7 of 7 results.

A386037 Primes having only {0, 1, 6, 9} as digits.

Original entry on oeis.org

11, 19, 61, 101, 109, 191, 199, 601, 619, 661, 691, 911, 919, 991, 1009, 1019, 1061, 1069, 1091, 1109, 1601, 1609, 1619, 1669, 1699, 1901, 1999, 6011, 6091, 6101, 6199, 6619, 6661, 6691, 6911, 6961, 6991, 9001, 9011, 9091, 9109, 9161, 9199, 9601, 9619, 9661, 9901
Offset: 1

Views

Author

Jason Bard, Jul 15 2025

Keywords

Links

Crossrefs

Supersequence of A199326, A199329, A363023.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [0, 1, 6, 9]];
  • Maple
    f:= n-> (l-> add([0, 1, 6, 9][l[j]+1]*10^(j-1), j=1..nops(l)))(convert(n, base, 4)):
select(isprime, [seq(f(i), i=0..250)])[];  # Alois P. Heinz, Jul 15 2025
  • Mathematica
    Select[FromDigits /@ Tuples[{0, 1, 6, 9}, n], PrimeQ]
  • PARI
    primes_with(, 1, [0, 1, 6, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("0169"), 41))) # uses function/imports in A385776

A386101 Primes having only {1, 2, 6, 9} as digits.

Original entry on oeis.org

2, 11, 19, 29, 61, 191, 199, 211, 229, 269, 619, 661, 691, 911, 919, 929, 991, 1129, 1229, 1291, 1619, 1621, 1669, 1699, 1999, 2111, 2129, 2161, 2221, 2269, 2621, 2699, 2969, 2999, 6121, 6199, 6211, 6221, 6229, 6269, 6299, 6619, 6661, 6691, 6911, 6961, 6991, 9161
Offset: 1

Views

Author

Jason Bard, Jul 17 2025

Keywords

Links

Crossrefs

Supersequence of A363023, A385774, A385776, A385788.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 2, 6, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{1, 2, 6, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [1, 2, 6, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("1269"), 41))) # uses function/imports in A385776

A386116 Primes having only {1, 3, 6, 9} as digits.

Original entry on oeis.org

3, 11, 13, 19, 31, 61, 113, 131, 139, 163, 191, 193, 199, 311, 313, 331, 613, 619, 631, 661, 691, 911, 919, 991, 1163, 1193, 1319, 1361, 1399, 1613, 1619, 1663, 1669, 1693, 1699, 1913, 1931, 1933, 1993, 1999, 3119, 3163, 3169, 3191, 3313, 3319, 3331, 3361, 3391
Offset: 1

Views

Author

Jason Bard, Jul 17 2025

Keywords

Links

Crossrefs

Supersequence of A329761, A363023, A385777.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 3, 6, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{1, 3, 6, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [1, 3, 6, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("1369"), 41))) # uses function/imports in A385776

A386125 Primes having only {1, 4, 6, 9} as digits.

Original entry on oeis.org

11, 19, 41, 61, 149, 191, 199, 419, 449, 461, 491, 499, 619, 641, 661, 691, 911, 919, 941, 991, 1499, 1619, 1669, 1699, 1949, 1999, 4111, 4441, 4649, 4691, 4919, 4969, 4999, 6199, 6449, 6469, 6491, 6619, 6661, 6691, 6911, 6949, 6961, 6991, 9161, 9199, 9419, 9461
Offset: 1

Views

Author

Jason Bard, Jul 17 2025

Keywords

Links

Crossrefs

Supersequence of A107666, A260269, A260271, A363023.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 4, 6, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{1, 4, 6, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [1, 4, 6, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("1469"), 41))) # uses function/imports in A385776

A386131 Primes having only {1, 5, 6, 9} as digits.

Original entry on oeis.org

5, 11, 19, 59, 61, 151, 191, 199, 569, 599, 619, 659, 661, 691, 911, 919, 991, 1151, 1511, 1559, 1619, 1669, 1699, 1951, 1999, 5119, 5519, 5569, 5591, 5651, 5659, 5669, 6151, 6199, 6551, 6569, 6599, 6619, 6659, 6661, 6691, 6911, 6959, 6961, 6991, 9151, 9161, 9199
Offset: 1

Views

Author

Jason Bard, Jul 17 2025

Keywords

Links

Crossrefs

Supersequence of A363023, A385779, A385781, A385797.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 5, 6, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{1, 5, 6, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [1, 5, 6, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("1569"), 41))) # uses function/imports in A385776

A386136 Primes having only {1, 6, 7, 9} as digits.

Original entry on oeis.org

7, 11, 17, 19, 61, 67, 71, 79, 97, 167, 179, 191, 197, 199, 617, 619, 661, 677, 691, 719, 761, 769, 797, 911, 919, 967, 971, 977, 991, 997, 1117, 1171, 1619, 1667, 1669, 1697, 1699, 1777, 1979, 1997, 1999, 6197, 6199, 6619, 6661, 6679, 6691, 6719, 6761, 6779
Offset: 1

Views

Author

Jason Bard, Jul 17 2025

Keywords

Links

Crossrefs

Supersequence of A260891, A260893, A261184, A363023.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 6, 7, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{1, 6, 7, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [1, 6, 7, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("1679"), 41))) # uses function/imports in A385776

A386137 Primes having only {1, 6, 8, 9} as digits.

Original entry on oeis.org

11, 19, 61, 89, 181, 191, 199, 619, 661, 691, 811, 881, 911, 919, 991, 1181, 1619, 1669, 1699, 1811, 1861, 1889, 1999, 6199, 6619, 6661, 6689, 6691, 6869, 6899, 6911, 6961, 6991, 8111, 8161, 8191, 8669, 8681, 8689, 8699, 8819, 8861, 8969, 8999, 9161, 9181, 9199
Offset: 1

Views

Author

Jason Bard, Jul 17 2025

Keywords

Links

Crossrefs

Supersequence of A363023, A385782, A385783, A385800.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 6, 8, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{1, 6, 8, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [1, 6, 8, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("1689"), 41))) # uses function/imports in A385776
Showing 1-7 of 7 results.

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