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.

A369432 Number of Dyck excursions with catastrophes from (0,0) to (n,0).

Table of values

n a(n)
0 1
1 1
2 3
3 6
4 16
5 37
6 95
7 230
8 582
9 1434
10 3606
11 8952
12 22446
13 55917
14 140007
15 349374
16 874150
17 2183230
18 5460506
19 13643972
20 34118328
21 85270626
22 213205958
23 532926716
24 1332420796
25 3330739972
26 8327221380
27 20816939100
28 52043684970
29 130105200765
30 325267849335
31 813155081070

List of values

[1, 1, 3, 6, 16, 37, 95, 230, 582, 1434, 3606, 8952, 22446, 55917, 140007, 349374, 874150, 2183230, 5460506, 13643972, 34118328, 85270626, 213205958, 532926716, 1332420796, 3330739972, 8327221380, 20816939100, 52043684970, 130105200765, 325267849335, 813155081070]

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

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