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.

A071885 Trajectory of 38 under map x -> A002487(x)*A002487(x+1).

Original entry on oeis.org

38, 70, 117, 198, 368, 210, 558, 1312, 693, 3920, 2438, 6900, 17138, 43792, 105939, 553150, 862695, 5466578, 262720694, 8088309190, 155799611901, 2918284055518, 415202250061643, 1166813484199476, 224311803609338424
Offset: 0

Views

Author

N. J. A. Sloane and J. H. Conway, Jun 10 2002

Keywords

Crossrefs

Cf. A002487, A071884, A071886, A071887.

A071886 Trajectory of 41 under map x -> A002487(x)*A002487(x+1).

Original entry on oeis.org

41, 88, 85, 273, 456, 370, 897, 418, 943, 561, 1240, 2457, 13860, 47652, 208380, 234724, 1687203, 8509066, 67089945, 13299944, 72454532, 940541150, 820208766, 5192523560, 13313765208, 46414871454, 6589784048694, 93614939731600
Offset: 0

Views

Author

N. J. A. Sloane and J. H. Conway, Jun 10 2002

Keywords

Crossrefs

Cf. A002487, A071885, A071884, A071887.

A071887 Conjectured values of n whose trajectory under map x -> A002487(x)*A002487(x+1) does not go into a cycle.

Original entry on oeis.org

37, 38, 41, 54, 57, 58
Offset: 1

Views

Author

J. H. Conway, Jun 10 2002

Keywords

Comments

Why isn't 42 in this list? It does not enter a cycle in under 100 iterations which is as far as I could check. [Sean A. Irvine, Oct 05 2011]

Crossrefs

Cf. A002487, A070871, A071884, A071885, A071886.
Showing 1-3 of 3 results.

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

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