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.

A192417 Number of lattice paths from (0,0) to (n,n) using steps (0,1), (1,0), (2,2), (3,3).

Table of values

n a(n)
0 1
1 2
2 7
3 27
4 107
5 436
6 1810
7 7609
8 32288
9 138009
10 593311
11 2562725
12 11112720
13 48347332
14 210936119
15 922550622
16 4043488129
17 17755735241
18 78099099877
19 344033901804
20 1517535718392
21 6701979806379
22 29630948706756
23 131136723532257
24 580901892464599
25 2575423975663301

List of values

[1, 2, 7, 27, 107, 436, 1810, 7609, 32288, 138009, 593311, 2562725, 11112720, 48347332, 210936119, 922550622, 4043488129, 17755735241, 78099099877, 344033901804, 1517535718392, 6701979806379, 29630948706756, 131136723532257, 580901892464599, 2575423975663301]

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

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