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.

A319211 a(n) = 1*2*3*4*5*6*7*8*9 + 10*11*12*13*14*15*16*17*18 + 19*20*21*22*23*24*25*26*27 + ... + (up to n).

Table of values

n a(n)
1 1
2 2
3 6
4 24
5 120
6 720
7 5040
8 40320
9 362880
10 362890
11 362990
12 364200
13 380040
14 603120
15 3966480
16 58020480
17 980542080
18 17643588480
19 17643588499
20 17643588860
21 17643596460
22 17643764040
23 17647626360
24 17740497600
25 20066316480
26 80634516480
27 1718398644480

List of values

[1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 362890, 362990, 364200, 380040, 603120, 3966480, 58020480, 980542080, 17643588480, 17643588499, 17643588860, 17643596460, 17643764040, 17647626360, 17740497600, 20066316480, 80634516480, 1718398644480]

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

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