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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.

A247296 Number of uhd and uHd in all weighted lattice paths B(n).

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 1
5 3
6 7
7 18
8 45
9 112
10 281
11 706
12 1778
13 4490
14 11363
15 28814
16 73199
17 186257
18 474635
19 1211122
20 3094171
21 7913765
22 20261142
23 51921920
24 133171656
25 341836748
26 878104607
27 2257208148
28 5805964495
29 14942942127
30 38480449261
31 99145105834
32 255573465001
33 659114680270

List of values

[0, 0, 0, 0, 1, 3, 7, 18, 45, 112, 281, 706, 1778, 4490, 11363, 28814, 73199, 186257, 474635, 1211122, 3094171, 7913765, 20261142, 51921920, 133171656, 341836748, 878104607, 2257208148, 5805964495, 14942942127, 38480449261, 99145105834, 255573465001, 659114680270]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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