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.

A219661 Number of steps to go from (n+1)!-1 to n!-1 with map x -> x - (sum of digits in factorial base representation of x).

Table of values

n a(n)
1 1
2 2
3 5
4 19
5 83
6 428
7 2611
8 18473
9 150726
10 1377548
11 13851248
12 152610108
13 1835293041
14 23925573979
15 335859122743
16 5049372125352
17 80942722123544
18 1378487515335424
19 24858383452927384
20 473228664468684846

List of values

[1, 2, 5, 19, 83, 428, 2611, 18473, 150726, 1377548, 13851248, 152610108, 1835293041, 23925573979, 335859122743, 5049372125352, 80942722123544, 1378487515335424, 24858383452927384, 473228664468684846]

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

Content is available under The OEIS End-User License Agreement.