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.

A184123 Number of n X 3 0..3 arrays with rows and columns in nondecreasing order.

Table of values

n a(n)
1 20
2 561
3 14178
4 276427
5 4249486
6 53817407
7 581588614
8 5503143135
9 46473256070
10 355407459056
11 2489794107266
12 16126296889260
13 97309331427298
14 550557601317077
15 2936599872342895
16 14836021866212493
17 71284139688101545

List of values

[20, 561, 14178, 276427, 4249486, 53817407, 581588614, 5503143135, 46473256070, 355407459056, 2489794107266, 16126296889260, 97309331427298, 550557601317077, 2936599872342895, 14836021866212493, 71284139688101545]

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

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