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.

A209106 Number of 7Xn 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.

Table of values

n a(n)
1 365
2 254496
3 125526240
4 57113932788
5 25586970618660
6 11437585318270860
7 5112092569118325704
8 2285013663964828552960
9 1021387683873603848380972
10 456557468966590708568722520
11 204080223921705625484844604564

List of values

[365, 254496, 125526240, 57113932788, 25586970618660, 11437585318270860, 5112092569118325704, 2285013663964828552960, 1021387683873603848380972, 456557468966590708568722520, 204080223921705625484844604564]

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

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