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.

A060412 In the '3x+1' problem, these values for the starting value set new records for the "dropping time", number of steps to reach a lower value than the start.

Table of values

n a(n)
1 2
2 3
3 7
4 27
5 703
6 10087
7 35655
8 270271
9 362343
10 381727
11 626331
12 1027431
13 1126015
14 8088063
15 13421671
16 20638335
17 26716671
18 56924955
19 63728127
20 217740015
21 1200991791
22 1827397567
23 2788008987
24 12235060455

List of values

[2, 3, 7, 27, 703, 10087, 35655, 270271, 362343, 381727, 626331, 1027431, 1126015, 8088063, 13421671, 20638335, 26716671, 56924955, 63728127, 217740015, 1200991791, 1827397567, 2788008987, 12235060455]

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

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