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.

A330909 Floor of area of triangle whose sides are consecutive Ulam numbers (A002858).

Table of values

n a(n)
1 0
2 2
3 5
4 11
5 23
6 43
7 70
8 100
9 141
10 227
11 361
12 478
13 670
14 826
15 1044
16 1183
17 1405
18 1668
19 1960
20 2272
21 2545
22 2889
23 3351
24 3819
25 4267
26 4523
27 4955
28 5669
29 6558
30 7474
31 8203
32 8914
33 9633
34 10813
35 12245
36 13611
37 13972
38 14587
39 15473
40 16798
41 17987
42 19298
43 20229
44 21909
45 23166

List of values

[0, 2, 5, 11, 23, 43, 70, 100, 141, 227, 361, 478, 670, 826, 1044, 1183, 1405, 1668, 1960, 2272, 2545, 2889, 3351, 3819, 4267, 4523, 4955, 5669, 6558, 7474, 8203, 8914, 9633, 10813, 12245, 13611, 13972, 14587, 15473, 16798, 17987, 19298, 20229, 21909, 23166]