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.

A255410 Main diagonal of Ludic array A255127 (and A255129): a(n) = A255127(n,n).

Table of values

n a(n)
1 2
2 9
3 35
4 85
5 203
6 325
7 547
8 911
9 1181
10 1591
11 2347
12 2923
13 3421
14 4151
15 5161
16 6461
17 7693
18 8785
19 10237
20 11789
21 13469
22 14621
23 16523
24 19225
25 21775
26 23669
27 25237
28 27715
29 29891
30 34073
31 36977
32 40487
33 43151
34 48091
35 50429
36 53407
37 55843
38 61541
39 68797
40 71603
41 77279
42 80291
43 84091
44 88771
45 91997
46 96119
47 101927
48 108833
49 115031
50 123187

List of values

[2, 9, 35, 85, 203, 325, 547, 911, 1181, 1591, 2347, 2923, 3421, 4151, 5161, 6461, 7693, 8785, 10237, 11789, 13469, 14621, 16523, 19225, 21775, 23669, 25237, 27715, 29891, 34073, 36977, 40487, 43151, 48091, 50429, 53407, 55843, 61541, 68797, 71603, 77279, 80291, 84091, 88771, 91997, 96119, 101927, 108833, 115031, 123187]