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.

A224152 Number of n X n 0..1 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.

Table of values

n a(n)
1 2
2 12
3 89
4 574
5 3469
6 20065
7 114537
8 650819
9 3705824
10 21181267
11 121617211
12 701255335
13 4058735341
14 23565789117
15 137190976378
16 800437914689
17 4678794395883
18 27391873966579
19 160581355210547
20 942493889605853

List of values

[2, 12, 89, 574, 3469, 20065, 114537, 650819, 3705824, 21181267, 121617211, 701255335, 4058735341, 23565789117, 137190976378, 800437914689, 4678794395883, 27391873966579, 160581355210547, 942493889605853]

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

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