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.

A230707 Number of (n+3)X(7+3) 0..2 white 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 3956
2 173428
3 8053490
4 342031378
5 14669811856
6 625553036008
7 26681634560690
8 1137681116923966
9 48508501856178526
10 2068224674692996586
11 88181384650502245634
12 3759701430154725238638
13 160298702553771350622996

List of values

[3956, 173428, 8053490, 342031378, 14669811856, 625553036008, 26681634560690, 1137681116923966, 48508501856178526, 2068224674692996586, 88181384650502245634, 3759701430154725238638, 160298702553771350622996]