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.

A323416 a(n) = (n-1)! * (10^n - 1) / 9.

Table of values

n a(n)
1 1
2 11
3 222
4 6666
5 266664
6 13333320
7 799999920
8 55999999440
9 4479999995520
10 403199999959680
11 40319999999596800
12 4435199999995564800
13 532223999999946777600
14 69189119999999308108800
15 9686476799999990313523200
16 1452971519999999854702848000
17 232475443199999997675245568000
18 39520825343999999960479174656000

List of values

[1, 11, 222, 6666, 266664, 13333320, 799999920, 55999999440, 4479999995520, 403199999959680, 40319999999596800, 4435199999995564800, 532223999999946777600, 69189119999999308108800, 9686476799999990313523200, 1452971519999999854702848000, 232475443199999997675245568000, 39520825343999999960479174656000]

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

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