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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.

A185096 Let T(n) = n(n+1)/2 be the n-th triangular number (A000217); a(n) = T(8T(n)).

Table of values

n a(n)
0 0
1 36
2 300
3 1176
4 3240
5 7260
6 14196
7 25200
8 41616
9 64980
10 97020
11 139656
12 195000
13 265356
14 353220
15 461280
16 592416
17 749700
18 936396
19 1155960
20 1412040
21 1708476
22 2049300
23 2438736
24 2881200
25 3381300
26 3943836
27 4573800
28 5276376
29 6056940
30 6921060
31 7874496
32 8923200
33 10073316
34 11331180
35 12703320
36 14196456
37 15817500
38 17573556
39 19471920
40 21520080

List of values

[0, 36, 300, 1176, 3240, 7260, 14196, 25200, 41616, 64980, 97020, 139656, 195000, 265356, 353220, 461280, 592416, 749700, 936396, 1155960, 1412040, 1708476, 2049300, 2438736, 2881200, 3381300, 3943836, 4573800, 5276376, 6056940, 6921060, 7874496, 8923200, 10073316, 11331180, 12703320, 14196456, 15817500, 17573556, 19471920, 21520080]

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

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