A254125 - cp's OEIS frontend

A254125 The number of tilings of a 4 X n rectangle using integer length rectangles with at least one side of length 1, i.e., tiles are 1 X 1, 1 X 2, ..., 1 X n, 2 X 1, 3 X 1, 4 X 1.

n	a(n)
0	1
1	8
2	124
3	2408
4	50128
5	1064576
6	22734496
7	486248000
8	10404289216
9	222647030144
10	4764694602112
11	101966374503680
12	2182126445631232
13	46698521255409152
14	999370260391863808
15	21386993399983588352
16	457691719382960757760
17	9794818132582234683392

[1, 8, 124, 2408, 50128, 1064576, 22734496, 486248000, 10404289216, 222647030144, 4764694602112, 101966374503680, 2182126445631232, 46698521255409152, 999370260391863808, 21386993399983588352, 457691719382960757760, 9794818132582234683392]

cp's OEIS Frontend

A254125 The number of tilings of a 4 X n rectangle using integer length rectangles with at least one side of length 1, i.e., tiles are 1 X 1, 1 X 2, ..., 1 X n, 2 X 1, 3 X 1, 4 X 1.

Table of values

List of values