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.

A319014 a(n) = 1*2*3 + 4*5*6 + 7*8*9 + 10*11*12 + 13*14*15 + 16*17*18 + ... + (up to n).

Table of values

n a(n)
1 1
2 2
3 6
4 10
5 26
6 126
7 133
8 182
9 630
10 640
11 740
12 1950
13 1963
14 2132
15 4680
16 4696
17 4952
18 9576
19 9595
20 9956
21 17556
22 17578
23 18062
24 29700
25 29725
26 30350
27 47250
28 47278
29 48062
30 71610
31 71641
32 72602
33 104346
34 104380
35 105536
36 147186
37 147223
38 148592
39 202020
40 202060
41 203660

List of values

[1, 2, 6, 10, 26, 126, 133, 182, 630, 640, 740, 1950, 1963, 2132, 4680, 4696, 4952, 9576, 9595, 9956, 17556, 17578, 18062, 29700, 29725, 30350, 47250, 47278, 48062, 71610, 71641, 72602, 104346, 104380, 105536, 147186, 147223, 148592, 202020, 202060, 203660]

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

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