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.

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A385780 Primes having only {1, 5, 8} as digits.

Original entry on oeis.org

5, 11, 151, 181, 811, 881, 1151, 1181, 1511, 1811, 5581, 5851, 5881, 8111, 8581, 11551, 15511, 15551, 15581, 15881, 18181, 51151, 51511, 51551, 51581, 55511, 58111, 58151, 58511, 81181, 81551, 88811, 111581, 115151, 115811, 155581, 155851, 158551, 158581
Offset: 1

Views

Author

Jason Bard, Jul 13 2025

Keywords

Links

Crossrefs

Supersequence of A020453, A020456.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 5, 8]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{1, 5, 8}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [1, 5, 8]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("158"), 41))) # uses function/imports in A385776

A385781 Primes having only {1, 5, 9} as digits.

Original entry on oeis.org

5, 11, 19, 59, 151, 191, 199, 599, 911, 919, 991, 1151, 1511, 1559, 1951, 1999, 5119, 5519, 5591, 9151, 9199, 9511, 9551, 11119, 11159, 11519, 11551, 11959, 15199, 15511, 15551, 15559, 15919, 15959, 15991, 19559, 19919, 19991, 51151, 51199, 51511, 51551
Offset: 1

Views

Author

Jason Bard, Jul 13 2025

Keywords

Links

Crossrefs

Supersequence of A020453, A020457, A020468.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 5, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{1, 5, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [1, 5, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("159"), 41))) # uses function/imports in A385776

A385782 Primes having only {1, 6, 8} as digits.

Original entry on oeis.org

11, 61, 181, 661, 811, 881, 1181, 1811, 1861, 6661, 8111, 8161, 8681, 8861, 11161, 11681, 16111, 16661, 16811, 18181, 18661, 61681, 61861, 66161, 68111, 68161, 68611, 68881, 81181, 81611, 86111, 86161, 86861, 88661, 88681, 88811, 88861, 111611, 116681, 116881
Offset: 1

Views

Author

Jason Bard, Jul 13 2025

Keywords

Links

Crossrefs

Subsequence of A030430. Supersequence of A020454, A020456.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 6, 8]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{1, 6, 8}, n], PrimeQ], {n, 7}]]
Select[10Flatten[Table[FromDigits/@Tuples[{1,6,8},n],{n,5}]]+1,PrimeQ] (* Harvey P. Dale, Aug 27 2025 *)
  • PARI
    primes_with(, 1, [1, 6, 8]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("168"), 41))) # uses function/imports in A385776

A385783 Primes having only {1, 8, 9} as digits.

Original entry on oeis.org

11, 19, 89, 181, 191, 199, 811, 881, 911, 919, 991, 1181, 1811, 1889, 1999, 8111, 8191, 8819, 8999, 9181, 9199, 9811, 11119, 11981, 18119, 18181, 18191, 18199, 18899, 18911, 18919, 19181, 19819, 19889, 19891, 19919, 19991, 81119, 81181, 81199, 81899, 81919
Offset: 1

Views

Author

Jason Bard, Jul 13 2025

Keywords

Links

Crossrefs

Supersequence of A020456, A020457, A020472.
Cf. A000040, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 8, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{1, 8, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [1, 8, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("189"), 41))) # uses function/imports in A385776

A385784 Primes having only {2, 4, 7} as digits.

Original entry on oeis.org

2, 7, 47, 227, 277, 727, 2447, 2477, 2777, 4447, 7247, 7477, 7727, 22247, 22277, 22447, 22727, 22777, 24247, 27277, 27427, 42227, 42727, 44777, 47777, 72227, 72277, 72727, 74747, 77447, 77477, 77747, 222247, 242227, 242447, 242747, 244247, 244747, 272227
Offset: 1

Views

Author

Jason Bard, Jul 13 2025

Keywords

Links

Crossrefs

Supersequence of A020459, A020465.
Cf. A000040, A030432, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [2, 4, 7]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{2, 4, 7}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [2, 4, 7]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("247"), 41))) # uses function/imports in A385776

A385785 Primes having only {2, 4, 9} as digits.

Original entry on oeis.org

2, 29, 229, 449, 499, 929, 2999, 4229, 4999, 9929, 9949, 22229, 24229, 24499, 29429, 42299, 42499, 42929, 44249, 44449, 49429, 49499, 49999, 94229, 94949, 94999, 99929, 222499, 224299, 224429, 224449, 224929, 229249, 229499, 229949, 242449, 242999, 244429
Offset: 1

Views

Author

Jason Bard, Jul 13 2025

Keywords

Links

Crossrefs

Supersequence of A020460, A020466.
Cf. A000040, A030433, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [2, 4, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{2, 4, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [2, 4, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("249"), 41))) # uses function/imports in A385776

A385786 Primes having only {2, 5, 9} as digits.

Original entry on oeis.org

2, 5, 29, 59, 229, 599, 929, 2999, 9929, 22229, 22259, 25229, 25999, 29599, 29959, 52259, 52529, 52999, 55229, 55259, 55529, 59929, 59999, 92959, 95929, 95959, 99259, 99529, 99559, 99929, 225299, 225529, 229529, 252559, 255259, 259229, 295259, 522229, 522259
Offset: 1

Views

Author

Jason Bard, Jul 13 2025

Keywords

Links

Crossrefs

Supersequence of A020460, A020468.
Cf. A000040, A030433, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [2, 5, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{2, 5, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [2, 5, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("259"), 41))) # uses function/imports in A385776

A385787 Primes having only {2, 6, 7} as digits.

Original entry on oeis.org

2, 7, 67, 227, 277, 677, 727, 2267, 2677, 2767, 2777, 6277, 7727, 22277, 22727, 22777, 26227, 26267, 26627, 26777, 27277, 27767, 62627, 67777, 72227, 72277, 72727, 72767, 76667, 76777, 77267, 226267, 226777, 227267, 227627, 262627, 266677, 266767, 267227
Offset: 1

Views

Author

Jason Bard, Jul 13 2025

Keywords

Links

Crossrefs

Supersequence of A020459, A020469.
Cf. A000040, A030432, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [2, 6, 7]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{2, 6, 7}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [2, 6, 7]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("267"), 41))) # uses function/imports in A385776

A385788 Primes having only {2, 6, 9} as digits.

Original entry on oeis.org

2, 29, 229, 269, 929, 2269, 2699, 2969, 2999, 6229, 6269, 6299, 9629, 9929, 22229, 22669, 22699, 26669, 26699, 29269, 29629, 29669, 62299, 62929, 62969, 66629, 69929, 92269, 92669, 92699, 96269, 99929, 222269, 226669, 229699, 266269, 266999, 292969, 296269
Offset: 1

Views

Author

Jason Bard, Jul 13 2025

Keywords

Links

Crossrefs

Supersequence of A020460.
Cf. A000040, A030433, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [2, 6, 9]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{2, 6, 9}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [2, 6, 9]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("269"), 41))) # uses function/imports in A385776

A385789 Primes having only {2, 7, 8} as digits.

Original entry on oeis.org

2, 7, 227, 277, 727, 787, 827, 877, 887, 2287, 2777, 2887, 7727, 7877, 8287, 8887, 22277, 22727, 22777, 22787, 22877, 27277, 27827, 28277, 72227, 72277, 72287, 72727, 78277, 78787, 78877, 78887, 82727, 82787, 87277, 87877, 87887, 222787, 222877, 227827, 228887
Offset: 1

Views

Author

Jason Bard, Jul 13 2025

Keywords

Links

Crossrefs

Supersequence of A020459, A020470.
Cf. A000040, A030432, A385776.

Programs

  • Magma
    [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [2, 7, 8]];
  • Mathematica
    Flatten[Table[Select[FromDigits /@ Tuples[{2, 7, 8}, n], PrimeQ], {n, 7}]]
  • PARI
    primes_with(, 1, [2, 7, 8]) \\ uses function in A385776
  • Python
    print(list(islice(primes_with("278"), 41))) # uses function/imports in A385776
Previous Showing 11-20 of 262 results. Next

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