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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.

A247292 Triangle read by rows: T(n,k) is the number of weighted lattice paths B(n) having k uHd strings.

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 8
5 16
6 1
7 35
8 2
9 77
10 5
11 172
12 13
13 391
14 32
15 899
16 78
17 1
18 2085
19 195
20 3
21 4877
22 487
23 9
24 11490
25 1217
26 28
27 27236
28 3055
29 81
30 64916
31 7687
32 228
33 1
34 155483
35 19374
36 641
37 4
38 374027
39 48925
40 1782
41 14
42 903286
43 123760
44 4908
45 50
46 2189219
47 313512
48 13451
49 165
50 5322965
51 795263
52 36690
53 522
54 1

List of values

[1, 1, 2, 4, 8, 16, 1, 35, 2, 77, 5, 172, 13, 391, 32, 899, 78, 1, 2085, 195, 3, 4877, 487, 9, 11490, 1217, 28, 27236, 3055, 81, 64916, 7687, 228, 1, 155483, 19374, 641, 4, 374027, 48925, 1782, 14, 903286, 123760, 4908, 50, 2189219, 313512, 13451, 165, 5322965, 795263, 36690, 522, 1]