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.

A349259 Numbers where A349258 reaches a record value.

Original entry on oeis.org

1, 2, 6, 8, 24, 120, 128, 384, 1920, 3456, 17280, 32768, 98304, 491520, 884736, 4423680, 30965760, 71663616, 358318080, 2147483648, 6442450944, 32212254720, 57982058496, 289910292480, 2029372047360, 4696546738176, 23482733690880, 164379135836160, 587068342272000
Offset: 1

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Author

Amiram Eldar, Nov 12 2021

Keywords

Comments

The corresponding record values are 0, 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 15, 16, ... (see the link for more values).

Examples

			The first 6 terms of A349258 are 0, 1, 1, 1, 1 and 2, The record values, 0, 1 and 2, occur at 1, 2 and 6, the first 3 terms of this sequence.
		

Crossrefs

Cf. A349258.
Subsequence of A025487.

Programs

  • Mathematica
    f[p_,e_] := 2^DigitCount[e, 2, 1] - 1; c[1] = 0; c[n_] := Plus @@ f @@@ FactorInteger[n]; cm = -1; s = {}; Do[c1 = c[n]; If[c1 > cm, cm = c1; AppendTo[s, n]], {n, 1, 10^5}]; s