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.

A243820 Number of Dyck paths of semilength n such that all sixteen consecutive step patterns of length 4 occur at least once.

Table of values

n a(n)
10 38
11 587
12 4785
13 31398
14 190050
15 1043248
16 5324534
17 25711105
18 119092876
19 533680433
20 2329450085
21 9955122396
22 41824314441
23 173289259905
24 709861015186
25 2880803895035
26 11601285215222
27 46422795985447
28 184784743066842
29 732324944072523
30 2891815190097065
31 11385122145001833

List of values

[38, 587, 4785, 31398, 190050, 1043248, 5324534, 25711105, 119092876, 533680433, 2329450085, 9955122396, 41824314441, 173289259905, 709861015186, 2880803895035, 11601285215222, 46422795985447, 184784743066842, 732324944072523, 2891815190097065, 11385122145001833]

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

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