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.

A248880 Number of tilings of an n X 1 rectangle by tiles of dimension 1 X 1 and 2 X 1 such that every tile shares an equal-length edge with a tile of the same size.

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 2
5 1
6 4
7 3
8 7
9 7
10 13
11 14
12 24
13 28
14 45
15 56
16 86
17 111
18 165
19 218
20 317
21 426
22 611
23 831
24 1181
25 1619
26 2286
27 3150
28 4428
29 6123
30 8582
31 11896
32 16641
33 23105
34 32278
35 44865
36 62620
37 87103
38 121499
39 169087
40 235761
41 328214
42 457508
43 637064
44 887857
45 1236500
46 1723054

List of values

[1, 0, 1, 1, 2, 1, 4, 3, 7, 7, 13, 14, 24, 28, 45, 56, 86, 111, 165, 218, 317, 426, 611, 831, 1181, 1619, 2286, 3150, 4428, 6123, 8582, 11896, 16641, 23105, 32278, 44865, 62620, 87103, 121499, 169087, 235761, 328214, 457508, 637064, 887857, 1236500, 1723054]