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.

A250524 Number of (n+1)X(5+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)-x(i-1,j) in the j direction.

Table of values

n a(n)
1 10660
2 65310
3 279161
4 993123
5 3183434
6 9580060
7 27710543
8 78195145
9 217483704
10 600720730
11 1657359573
12 4587075263
13 12774934710
14 35868804392
15 101626338475
16 290581221893
17 838071567940
18 2435917896966
19 7127659997521
20 20972608975899

List of values

[10660, 65310, 279161, 993123, 3183434, 9580060, 27710543, 78195145, 217483704, 600720730, 1657359573, 4587075263, 12774934710, 35868804392, 101626338475, 290581221893, 838071567940, 2435917896966, 7127659997521, 20972608975899]

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

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