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.

A201229 Number of nX2 0..3 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Table of values

n a(n)
1 6
2 2
3 34
4 24
5 306
6 152
7 2697
8 1709
9 26353
10 14274
11 256132
12 155679
13 2577102
14 1435626
15 25812024
16 15341134
17 262850473
18 148007489
19 2677750617
20 1572346141
21 27580713570
22 15652657223
23 284558852486
24 165998453918
25 2956634276151
26 1686097239526

List of values

[6, 2, 34, 24, 306, 152, 2697, 1709, 26353, 14274, 256132, 155679, 2577102, 1435626, 25812024, 15341134, 262850473, 148007489, 2677750617, 1572346141, 27580713570, 15652657223, 284558852486, 165998453918, 2956634276151, 1686097239526]

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

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