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.

A207449 Number of n X 4 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically.

Table of values

n a(n)
1 10
2 100
3 330
4 760
5 1450
6 2460
7 3850
8 5680
9 8010
10 10900
11 14410
12 18600
13 23530
14 29260
15 35850
16 43360
17 51850
18 61380
19 72010
20 83800
21 96810
22 111100
23 126730
24 143760
25 162250
26 182260
27 203850
28 227080
29 252010
30 278700
31 307210
32 337600
33 369930
34 404260
35 440650

List of values

[10, 100, 330, 760, 1450, 2460, 3850, 5680, 8010, 10900, 14410, 18600, 23530, 29260, 35850, 43360, 51850, 61380, 72010, 83800, 96810, 111100, 126730, 143760, 162250, 182260, 203850, 227080, 252010, 278700, 307210, 337600, 369930, 404260, 440650]

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

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