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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.

A243880 Number of Dyck paths of semilength n having exactly 10 (possibly overlapping) occurrences of the consecutive steps UDUUUDDDUD (with U=(1,1), D=(1,-1)).

Table of values

n a(n)
41 1
42 12
43 100
44 749
45 5281
46 35641
47 232123
48 1466180
49 9017295
50 54172152
51 318732558
52 1840668348
53 10452539055
54 58458147585
55 322425939233
56 1755834940554
57 9450381436619
58 50317234401194
59 265235076809408
60 1385156654929038
61 7171253075566076
62 36826968212298201

List of values

[1, 12, 100, 749, 5281, 35641, 232123, 1466180, 9017295, 54172152, 318732558, 1840668348, 10452539055, 58458147585, 322425939233, 1755834940554, 9450381436619, 50317234401194, 265235076809408, 1385156654929038, 7171253075566076, 36826968212298201]

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

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