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.

A302875 Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 13
2 113
3 241
4 1442
5 7580
6 45897
7 320405
8 2489823
9 20679119
10 181479109
11 1638029668
12 15055216000
13 140041815820
14 1311377207833
15 12333793776935
16 116324158971711
17 1098943034315150
18 10393405509745294
19 98366682504010661
20 931394618765660697

List of values

[13, 113, 241, 1442, 7580, 45897, 320405, 2489823, 20679119, 181479109, 1638029668, 15055216000, 140041815820, 1311377207833, 12333793776935, 116324158971711, 1098943034315150, 10393405509745294, 98366682504010661, 931394618765660697]

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

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