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.

A240787 Number of 6Xn 0..1 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..1 introduced in row major order.

Table of values

n a(n)
1 32
2 361
3 2187
4 15332
5 106411
6 746346
7 5228820
8 36701371
9 257576121
10 1808280738
11 12694886397
12 89128797051
13 625760780302
14 4393427783962
15 30846025087421
16 216568722650785
17 1520521061879683
18 10675526309057060
19 74952512684267110

List of values

[32, 361, 2187, 15332, 106411, 746346, 5228820, 36701371, 257576121, 1808280738, 12694886397, 89128797051, 625760780302, 4393427783962, 30846025087421, 216568722650785, 1520521061879683, 10675526309057060, 74952512684267110]

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

Content is available under The OEIS End-User License Agreement.