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 1-3 of 3 results.

A387519 Indices of record high points in A386487.

Original entry on oeis.org

1, 3, 4, 6, 7, 12, 19, 32, 58, 77, 145, 208, 237, 321, 369, 480, 838, 1290, 1533, 3031, 4003, 4965, 6900, 7653, 13365, 18980, 23022, 28225, 36034, 54189, 74152, 82124, 129792, 274543, 419570, 730075, 1679322, 1844372, 2469066
Offset: 1

Views

Author

N. J. A. Sloane, Sep 01 2025.

Keywords

Comments

Needs a b-file!

Crossrefs

Cf. A386482, A386487, A386488, A387520, A387521.

Programs

  • Mathematica
    r = -1; s = Import["https://oeis.org/A386482/b386482.txt", "Data"][[All, -1]]; Reap[Do[If[# > r, r = #; Sow[n]] &[s[[n]] - n], {n, Length[s]}] ][[-1, 1]] (* Michael De Vlieger, Sep 01 2025 *)

Extensions

More terms from Michael De Vlieger, Sep 01 2025

A387520 Record low points in A386487, negated.

Original entry on oeis.org

0, 2, 4, 12, 13, 31, 35, 50, 78, 97, 128, 204, 217, 241, 316, 337, 352, 381, 396, 407, 428, 439, 460, 471, 486, 495, 599, 600, 603, 605, 768, 778, 857, 927, 1057, 1252, 1318, 1919, 2244, 2524, 2554, 2809, 2866, 3384, 3896, 3930, 4373, 4668, 4709, 5446, 6006, 9236, 9289, 9514
Offset: 1

Views

Author

N. J. A. Sloane, Sep 01 2025.

Keywords

Comments

In other words, record high points in -A386487.

Links

Crossrefs

Cf. A386482, A386487, A386488, A387519, A387521.

Programs

  • Mathematica
    r = -1; s = Import["https://oeis.org/A386482/b386482.txt", "Data"][[All, -1]]; Reap[Do[If[# > r, r = #; Sow[#]] &[n - s[[n]]], {n, Length[s]}] ][[-1, 1]] (* Michael De Vlieger, Sep 01 2025 *)

A387521 Indices of record low points in A386487.

Original entry on oeis.org

1, 5, 11, 17, 24, 44, 52, 73, 115, 126, 189, 287, 320, 368, 453, 638, 639, 640, 641, 642, 643, 644, 645, 646, 647, 650, 652, 667, 674, 678, 809, 821, 996, 1016, 1206, 1425, 1497, 2020, 2425, 2637, 2747, 3006, 3017, 3541, 4597, 4649, 4680, 4867, 4876, 6105, 6247, 9513, 9662, 9795
Offset: 1

Views

Author

N. J. A. Sloane, Sep 01 2025

Keywords

Links

Crossrefs

Cf. A386482, A386487, A386488, A387519, A387520.
Showing 1-3 of 3 results.

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

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