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.

A319873 a(n) = 9*8*7*6*5*4*3*2*1 + 18*17*16*15*14*13*12*11*10 + ... + (up to the n-th term).

Table of values

n a(n)
1 9
2 72
3 504
4 3024
5 15120
6 60480
7 181440
8 362880
9 362880
10 362898
11 363186
12 367776
13 436320
14 1391040
15 13728960
16 160755840
17 1764685440
18 17643588480
19 17643588507
20 17643589182
21 17643606030
22 17644009680
23 17653276080
24 17856715680
25 22119259680
26 107157012480

List of values

[9, 72, 504, 3024, 15120, 60480, 181440, 362880, 362880, 362898, 363186, 367776, 436320, 1391040, 13728960, 160755840, 1764685440, 17643588480, 17643588507, 17643589182, 17643606030, 17644009680, 17653276080, 17856715680, 22119259680, 107157012480]