A281369 -id:A281369 - cp's OEIS frontend

A281370 Orbit of 25 under repeated applications of the inverse of the map m -> A280864(m).

25, 35, 36, 33, 43, 66, 68, 60, 61, 95, 101, 149, 263, 454, 381, 411, 432, 423, 491, 910, 884, 856, 730, 707, 702, 682, 653, 1277, 2443, 2605, 2783, 2802, 2603, 2588, 2025, 2154, 1962, 1692, 1566, 1577, 1557, 1729, 970, 946, 912, 867, 786, 741, 490, 478, 422, 369, 404, 344, 337, 578, 568

Offset: 1

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N. J. A. Sloane, Feb 03 2017

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It is a strong conjecture that A280864 is a permutation of the positive integers. The orbit containing 25 appears to be the first infinite orbit. See A281370 for the orbit of 25 under the inverse permutation, and see A280864 for other orbits (there are several small cycles).

N. J. A. Sloane, Table of n, a(n) for n = 1..436

Cf. A280864, A281369.

cp's OEIS Frontend

A281370 Orbit of 25 under repeated applications of the inverse of the map m -> A280864(m).

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