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.

A230737 Number of (n+3)X(4+3) 0..2 black square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero.

Table of values

n a(n)
1 102
2 2016
3 16536
4 320970
5 2382398
6 46599682
7 342031378
8 6692078688
9 49068380730
10 959928337654
11 7037607186036
12 137677370665624
13 1009342929539188
14 19745940646875492
15 144761390761971996
16 2831990839783724564

List of values

[102, 2016, 16536, 320970, 2382398, 46599682, 342031378, 6692078688, 49068380730, 959928337654, 7037607186036, 137677370665624, 1009342929539188, 19745940646875492, 144761390761971996, 2831990839783724564]