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.

A274724 Number of nX4 0..2 arrays with no element equal to any value at offset (-1,-2) (-2,-1) or (-1,0) and new values introduced in order 0..2.

Table of values

n a(n)
1 14
2 96
3 296
4 1632
5 9308
6 52912
7 301784
8 1721528
9 9816048
10 55981988
11 319253288
12 1820657976
13 10382921956
14 59212245524
15 337678318592
16 1925727939552
17 10982131736244
18 62629418453640
19 357165995693576
20 2036863060347232

List of values

[14, 96, 296, 1632, 9308, 52912, 301784, 1721528, 9816048, 55981988, 319253288, 1820657976, 10382921956, 59212245524, 337678318592, 1925727939552, 10982131736244, 62629418453640, 357165995693576, 2036863060347232]

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

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