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.

A273477 Number of tilings of a 7 X n rectangle using pentominoes of shapes W, U, X and monominoes.

Table of values

n a(n)
0 1
1 1
2 23
3 1086
4 13097
5 261110
6 5732276
7 105028302
8 2057123951
9 40750196324
10 789214306848
11 15416490294168
12 301533431477968
13 5881271193704355
14 114836714153318686
15 2242611029205195253
16 43780084385383228801
17 854790034707804119211
18 16689735991827528511674

List of values

[1, 1, 23, 1086, 13097, 261110, 5732276, 105028302, 2057123951, 40750196324, 789214306848, 15416490294168, 301533431477968, 5881271193704355, 114836714153318686, 2242611029205195253, 43780084385383228801, 854790034707804119211, 16689735991827528511674]