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.

A195250 Number of lower triangles of a 4X4 0..n array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by two or less.

Table of values

n a(n)
1 1024
2 59049
3 190514
4 357847
5 533142
6 709613
7 886084
8 1062555
9 1239026
10 1415497
11 1591968
12 1768439
13 1944910
14 2121381
15 2297852
16 2474323
17 2650794
18 2827265
19 3003736
20 3180207
21 3356678
22 3533149
23 3709620
24 3886091
25 4062562
26 4239033
27 4415504
28 4591975

List of values

[1024, 59049, 190514, 357847, 533142, 709613, 886084, 1062555, 1239026, 1415497, 1591968, 1768439, 1944910, 2121381, 2297852, 2474323, 2650794, 2827265, 3003736, 3180207, 3356678, 3533149, 3709620, 3886091, 4062562, 4239033, 4415504, 4591975]