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.

Previous Showing 21-28 of 28 results.

A226820 Numbers of the form 2^j + 8^k, for j and k >= 0.

Original entry on oeis.org

2, 3, 5, 9, 10, 12, 16, 17, 24, 33, 40, 65, 66, 68, 72, 80, 96, 128, 129, 136, 192, 257, 264, 320, 513, 514, 516, 520, 528, 544, 576, 640, 768, 1024, 1025, 1032, 1088, 1536, 2049, 2056, 2112, 2560, 4097, 4098, 4100, 4104, 4112, 4128, 4160, 4224, 4352, 4608
Offset: 1

Views

Author

T. D. Noe, Jun 19 2013

Keywords

Links

Crossrefs

Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).

Programs

  • Mathematica
    a = 2; b = 8; mx = 5000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]

A226821 Numbers of the form 3^j + 8^k, for j and k >= 0.

Original entry on oeis.org

2, 4, 9, 10, 11, 17, 28, 35, 65, 67, 73, 82, 89, 91, 145, 244, 251, 307, 513, 515, 521, 539, 593, 730, 737, 755, 793, 1241, 2188, 2195, 2251, 2699, 4097, 4099, 4105, 4123, 4177, 4339, 4825, 6283, 6562, 6569, 6625, 7073, 10657, 19684, 19691, 19747, 20195, 23779
Offset: 1

Views

Author

T. D. Noe, Jun 19 2013

Keywords

Links

Crossrefs

Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).

Programs

  • Mathematica
    a = 3; b = 8; mx = 25000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]

A226822 Numbers of the form 4^j + 8^k, for j and k >= 0.

Original entry on oeis.org

2, 5, 9, 12, 17, 24, 65, 68, 72, 80, 128, 257, 264, 320, 513, 516, 528, 576, 768, 1025, 1032, 1088, 1536, 4097, 4100, 4104, 4112, 4160, 4352, 4608, 5120, 8192, 16385, 16392, 16448, 16896, 20480, 32769, 32772, 32784, 32832, 33024, 33792, 36864, 49152, 65537
Offset: 1

Views

Author

T. D. Noe, Jun 19 2013

Keywords

Links

Crossrefs

Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).

Programs

  • Mathematica
    a = 4; b = 8; mx = 70000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]
With[{upto=66000},Select[Union[4^#[[1]]+8^#[[2]]&/@Tuples[Range[ 0,Log[ 4,upto]],2]],#<=upto&]] (* Harvey P. Dale, Sep 15 2019 *)

A226823 Numbers of the form 5^j + 8^k, for j and k >= 0.

Original entry on oeis.org

2, 6, 9, 13, 26, 33, 65, 69, 89, 126, 133, 189, 513, 517, 537, 626, 633, 637, 689, 1137, 3126, 3133, 3189, 3637, 4097, 4101, 4121, 4221, 4721, 7221, 15626, 15633, 15689, 16137, 19721, 32769, 32773, 32793, 32893, 33393, 35893, 48393, 78126, 78133, 78189, 78637
Offset: 1

Views

Author

T. D. Noe, Jun 19 2013

Keywords

Links

Crossrefs

Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).

Programs

  • Mathematica
    a = 5; b = 8; mx = 80000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]

A226824 Numbers of the form 6^j + 8^k, for j and k >= 0.

Original entry on oeis.org

2, 7, 9, 14, 37, 44, 65, 70, 100, 217, 224, 280, 513, 518, 548, 728, 1297, 1304, 1360, 1808, 4097, 4102, 4132, 4312, 5392, 7777, 7784, 7840, 8288, 11872, 32769, 32774, 32804, 32984, 34064, 40544, 46657, 46664, 46720, 47168, 50752, 79424, 262145, 262150, 262180
Offset: 1

Views

Author

T. D. Noe, Jun 19 2013

Keywords

Links

Crossrefs

Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).

Programs

  • Mathematica
    a = 6; b = 8; mx = 300000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]

A226826 Numbers of the form 2^j + 9^k, for j and k >= 0.

Original entry on oeis.org

2, 3, 5, 9, 10, 11, 13, 17, 25, 33, 41, 65, 73, 82, 83, 85, 89, 97, 113, 129, 137, 145, 209, 257, 265, 337, 513, 521, 593, 730, 731, 733, 737, 745, 761, 793, 857, 985, 1025, 1033, 1105, 1241, 1753, 2049, 2057, 2129, 2777, 4097, 4105, 4177, 4825, 6562, 6563
Offset: 1

Views

Author

T. D. Noe, Jun 19 2013

Keywords

Links

Crossrefs

Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).

Programs

  • Mathematica
    a = 2; b = 9; mx = 7000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]

A226828 Numbers of the form 4^j + 9^k, for j and k >= 0.

Original entry on oeis.org

2, 5, 10, 13, 17, 25, 65, 73, 82, 85, 97, 145, 257, 265, 337, 730, 733, 745, 793, 985, 1025, 1033, 1105, 1753, 4097, 4105, 4177, 4825, 6562, 6565, 6577, 6625, 6817, 7585, 10657, 16385, 16393, 16465, 17113, 22945, 59050, 59053, 59065, 59113, 59305, 60073, 63145
Offset: 1

Views

Author

T. D. Noe, Jun 19 2013

Keywords

Links

Crossrefs

Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).

Programs

  • Mathematica
    a = 4; b = 9; mx = 70000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]

A226830 Numbers of the form 6^j + 9^k, for j and k >= 0.

Original entry on oeis.org

2, 7, 10, 15, 37, 45, 82, 87, 117, 217, 225, 297, 730, 735, 765, 945, 1297, 1305, 1377, 2025, 6562, 6567, 6597, 6777, 7777, 7785, 7857, 8505, 14337, 46657, 46665, 46737, 47385, 53217, 59050, 59055, 59085, 59265, 60345, 66825, 105705, 279937, 279945, 280017
Offset: 1

Views

Author

T. D. Noe, Jun 19 2013

Keywords

Links

Crossrefs

Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).

Programs

  • Mathematica
    a = 6; b = 9; mx = 300000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]
Previous Showing 21-28 of 28 results.

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

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