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.

A184566 Number of (n+2)X3 0..3 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

Table of values

n a(n)
1 14178
2 102445
3 545662
4 2430950
5 9496395
6 33351260
7 107058241
8 318063303
9 883398416
10 2312834051
11 5747404508
12 13634816674
13 31030883261
14 68030181122
15 144179542873
16 296289041222
17 591935421670
18 1152308627603
19 2190104262402

List of values

[14178, 102445, 545662, 2430950, 9496395, 33351260, 107058241, 318063303, 883398416, 2312834051, 5747404508, 13634816674, 31030883261, 68030181122, 144179542873, 296289041222, 591935421670, 1152308627603, 2190104262402]

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

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