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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.

A185477 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

Table of values

n a(n)
1 1169
2 4594
3 4594
4 13659
5 21834
6 13659
7 34779
8 76309
9 76309
10 34779
11 79743
12 225672
13 308692
14 225672
15 79743
16 169052
17 594798
18 1043186
19 1043186
20 594798
21 169052
22 336690
23 1433903
24 3097348
25 3959167
26 3097348
27 1433903
28 336690
29 636698
30 3212372
31 8297059

List of values

[1169, 4594, 4594, 13659, 21834, 13659, 34779, 76309, 76309, 34779, 79743, 225672, 308692, 225672, 79743, 169052, 594798, 1043186, 1043186, 594798, 169052, 336690, 1433903, 3097348, 3959167, 3097348, 1433903, 336690, 636698, 3212372, 8297059]

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

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