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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.

A243876 Number of Dyck paths of semilength n having exactly 6 (possibly overlapping) occurrences of the consecutive steps UDUUUDDDUD (with U=(1,1), D=(1,-1)).

Table of values

n a(n)
25 1
26 8
27 50
28 295
29 1674
30 9255
31 50037
32 265190
33 1381151
34 7083239
35 35832547
36 179064335
37 885033494
38 4330974280
39 21002926804
40 101014451257
41 482163988802
42 2285470580378
43 10763603536650
44 50390267987583
45 234599001141494
46 1086577533281204
47 5008393400154248

List of values

[1, 8, 50, 295, 1674, 9255, 50037, 265190, 1381151, 7083239, 35832547, 179064335, 885033494, 4330974280, 21002926804, 101014451257, 482163988802, 2285470580378, 10763603536650, 50390267987583, 234599001141494, 1086577533281204, 5008393400154248]

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

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