The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A006877

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A006877

In the '3x+1' problem, these values for the starting value set new records for number of steps to reach 1.
(history; published version)

#116 by Joerg Arndt at Fri Feb 07 09:44:29 EST 2025

STATUS

reviewed

approved

#115 by Michel Marcus at Fri Feb 07 09:39:46 EST 2025

STATUS

proposed

reviewed

#114 by Michael De Vlieger at Fri Feb 07 09:39:02 EST 2025

STATUS

editing

proposed

#113 by Michael De Vlieger at Fri Feb 07 09:39:01 EST 2025

LINKS

Olivier Rozier and Claude Terracol, <a href="https://arxiv.org/abs/2502.00948">Paradoxical behavior in Collatz sequences</a>, arXiv:2502.00948 [math.GM], 2025. See p. 15.

STATUS

approved

editing

#112 by Alois P. Heinz at Tue Jan 14 08:07:12 EST 2025

STATUS

reviewed

approved

#111 by Joerg Arndt at Tue Jan 14 06:03:01 EST 2025

STATUS

proposed

reviewed

#110 by Michel Marcus at Tue Jan 14 05:26:33 EST 2025

STATUS

editing

proposed

#109 by Michel Marcus at Tue Jan 14 05:26:25 EST 2025

LINKS

David Barina, <a href="https://doi.org/10.1007/s11227-020-03368-x">Convergence verification of the Collatz problem</a>, The Journal of Supercomputing 77(3) (2021), 2681-2688.

David Barina, <a href="https://doi.org/10.21203/rs.3.rs-3845558/v1">Computational Verification of the Collatz Problem</a>, preprint on Research Square (2024).

R. Robert Munafo, <a href="http://www.mrob.com/pub/seq/wondrous.html">Integer Sequences Related to 3x+1 Collatz Iteration</a>

David Barina, <a href="https://doi.org/10.21203/rs.3.rs-3845558/v1">Computational Verification of the Collatz Problem</a>, preprint on Research Square (2024).

AUTHOR

N. J. A. Sloane, _ and _Robert Munafo_

STATUS

proposed

editing

#108 by Hugo Pfoertner at Tue Jan 14 04:23:57 EST 2025

STATUS

editing

proposed

#107 by Hugo Pfoertner at Tue Jan 14 04:23:37 EST 2025

CROSSREFS

Cf. A006884, A006885, A006877, A006878, A033492, A380138.

STATUS

approved

editing