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.

A365469 Number of n X n nonnegative integer arrays with upper left entry 0, lower right entry n - 6, every value within 5 of its king-move distance from the upper left, and every value increasing by 0 or 1 with every step right, diagonally southeast, or down.

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 0
6 1
7 923
8 414638
9 141905658
10 44926520946
11 14490345222595
12 4982468227997168
13 1856518533812384105
14 750167381136816327009
15 326628155352701098746754
16 151933161224857150407326456
17 74864085012461648054019799968
18 38785037369022058785365519932029

List of values

[0, 0, 0, 0, 0, 1, 923, 414638, 141905658, 44926520946, 14490345222595, 4982468227997168, 1856518533812384105, 750167381136816327009, 326628155352701098746754, 151933161224857150407326456, 74864085012461648054019799968, 38785037369022058785365519932029]