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.

A203979 Number of (n+1)X4 0..2 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..2 introduced in row major order.

Table of values

n a(n)
1 96
2 864
3 7776
4 69984
5 629856
6 5668704
7 51018336
8 459165024
9 4132485216
10 37192366944
11 334731302496
12 3012581722464
13 27113235502176
14 244019119519584
15 2196172075676256
16 19765548681086304
17 177889938129776736

List of values

[96, 864, 7776, 69984, 629856, 5668704, 51018336, 459165024, 4132485216, 37192366944, 334731302496, 3012581722464, 27113235502176, 244019119519584, 2196172075676256, 19765548681086304, 177889938129776736]

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

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