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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.

A192365 Number of lattice paths from (0,0) to (n,n) using steps (1,0),(2,0),(0,1),(0,2),(1,1),(2,2).

Table of values

n a(n)
0 1
1 3
2 22
3 165
4 1327
5 10950
6 92045
7 783579
8 6733966
9 58294401
10 507579829
11 4440544722
12 39000863629
13 343677908223
14 3037104558574
15 26904952725061
16 238854984979423
17 2124492829796598
18 18927927904130617
19 168888613467092895
20 1508973226894216106
21 13498652154574126523
22 120886709687492946083

List of values

[1, 3, 22, 165, 1327, 10950, 92045, 783579, 6733966, 58294401, 507579829, 4440544722, 39000863629, 343677908223, 3037104558574, 26904952725061, 238854984979423, 2124492829796598, 18927927904130617, 168888613467092895, 1508973226894216106, 13498652154574126523, 120886709687492946083]

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

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