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.

A303201 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 32
2 42
3 122
4 497
5 1751
6 8250
7 34801
8 138014
9 547379
10 2363422
11 9950923
12 40646071
13 165726180
14 698032757
15 2923119363
16 12072924913
17 49765448651
18 207852058476
19 867405410380
20 3597782646113
21 14902213961792
22 62057837398724

List of values

[32, 42, 122, 497, 1751, 8250, 34801, 138014, 547379, 2363422, 9950923, 40646071, 165726180, 698032757, 2923119363, 12072924913, 49765448651, 207852058476, 867405410380, 3597782646113, 14902213961792, 62057837398724]

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

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