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.

A068271 1/4 the number of colorings of an n X n rhombic hexagonal array with 4 colors.

Table of values

n a(n)
1 1
2 12
3 264
4 11424
5 1008576
6 184910592
7 71033971200
8 57469424744448
9 98237339264864256
10 355574469749489123328
11 2729407814499050197254144
12 44482040254775494064841818112
13 1540473331004371306422199656382464
14 113440401780206156918876627438624833536

List of values

[1, 12, 264, 11424, 1008576, 184910592, 71033971200, 57469424744448, 98237339264864256, 355574469749489123328, 2729407814499050197254144, 44482040254775494064841818112, 1540473331004371306422199656382464, 113440401780206156918876627438624833536]

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

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