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.

A047920 Triangular array formed from successive differences of factorial numbers.

Table of values

n a(n)
0 1
1 1
2 0
3 2
4 1
5 1
6 6
7 4
8 3
9 2
10 24
11 18
12 14
13 11
14 9
15 120
16 96
17 78
18 64
19 53
20 44
21 720
22 600
23 504
24 426
25 362
26 309
27 265
28 5040
29 4320
30 3720
31 3216
32 2790
33 2428
34 2119
35 1854
36 40320
37 35280
38 30960
39 27240
40 24024
41 21234
42 18806
43 16687
44 14833
45 362880
46 322560

List of values

[1, 1, 0, 2, 1, 1, 6, 4, 3, 2, 24, 18, 14, 11, 9, 120, 96, 78, 64, 53, 44, 720, 600, 504, 426, 362, 309, 265, 5040, 4320, 3720, 3216, 2790, 2428, 2119, 1854, 40320, 35280, 30960, 27240, 24024, 21234, 18806, 16687, 14833, 362880, 322560]

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

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