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.

A067092 a(n) = floor(X/Y) where X = concatenation in decreasing order of (2n)-th even number to (n+1)-th even number and Y = that of first n even numbers in increasing order.

Table of values

n a(n)
0 2
1 3
2 49
3 6540
4 8176
5 9814
6 11451
7 13088
8 14725
9 16362
10 17999
11 19636
12 21273
13 22910
14 24547
15 26184
16 27821
17 29458
18 31095
19 32732
20 34369
21 36006
22 37643
23 39280
24 40917
25 4217902
26 438013252
27 45423626657
28 4704592803725
29 486682294165577

List of values

[2, 3, 49, 6540, 8176, 9814, 11451, 13088, 14725, 16362, 17999, 19636, 21273, 22910, 24547, 26184, 27821, 29458, 31095, 32732, 34369, 36006, 37643, 39280, 40917, 4217902, 438013252, 45423626657, 4704592803725, 486682294165577]