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.

A185472 Number of (n+2)X6 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

Table of values

n a(n)
1 34779
2 225672
3 1043186
4 3959167
5 12990375
6 37961900
7 100908633
8 247920339
9 570069808
10 1239033996
11 2565887950
12 5095678058
13 9756244258
14 18087995239
15 32592776835
16 57255685167
17 98315034745
18 165384433476
19 273069215898

List of values

[34779, 225672, 1043186, 3959167, 12990375, 37961900, 100908633, 247920339, 570069808, 1239033996, 2565887950, 5095678058, 9756244258, 18087995239, 32592776835, 57255685167, 98315034745, 165384433476, 273069215898]

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

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