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.

A348180 Irregular triangle read by rows: T(n, k) is the number of chains of subspaces 0 < V_1 < ... < V_r = (F_5)^n, counted up to coordinate permutation, with dimension increments given by (any fixed permutation of) the parts of the k-th partition of n in Abramowitz-Stegun order.

Table of values

n a(n)
1 1
2 1
3 4
4 1
5 9
6 40
7 1
8 19
9 56
10 279
11 1428
12 1
13 33
14 289
15 1561
16 6345
17 35689
18 202421
19 1
20 55
21 1358
22 4836
23 7652
24 129505
25 615395
26 757560
27 3620918
28 21341449
29 125952538
30 1
31 85
32 5771
33 80605
34 33435
35 2362185
36 10691648
37 53822709
38 14039541
39 321134138
40 1622410155
41 1916573757
42 9688635876
43 57866763847

List of values

[1, 1, 4, 1, 9, 40, 1, 19, 56, 279, 1428, 1, 33, 289, 1561, 6345, 35689, 202421, 1, 55, 1358, 4836, 7652, 129505, 615395, 757560, 3620918, 21341449, 125952538, 1, 85, 5771, 80605, 33435, 2362185, 10691648, 53822709, 14039541, 321134138, 1622410155, 1916573757, 9688635876, 57866763847]