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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.

A369316 Number of Dyck bridges with resets to zero from (0,0) to (n,0).

Table of values

n a(n)
0 1
1 0
2 2
3 2
4 8
5 14
6 40
7 84
8 216
9 486
10 1200
11 2780
12 6744
13 15836
14 38096
15 90056
16 215728
17 511750
18 1223136
19 2907052
20 6939544
21 16511028
22 39386384
23 93768696
24 223589648
25 532502748
26 1269433376
27 3023953560
28 7207744496
29 17172061944
30 40926792224
31 97513876880
32 232395416672

List of values

[1, 0, 2, 2, 8, 14, 40, 84, 216, 486, 1200, 2780, 6744, 15836, 38096, 90056, 215728, 511750, 1223136, 2907052, 6939544, 16511028, 39386384, 93768696, 223589648, 532502748, 1269433376, 3023953560, 7207744496, 17172061944, 40926792224, 97513876880, 232395416672]

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

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