A060635 - cp's OEIS frontend

A060635 a(n) is the number of 2 X 1 domino tilings of the set S in the plane R^2 consisting of the union of the following two rectangles: rectangle1: |x| <= n, |y| <= 1, rectangle2: |x| <= 1, |y| <= n.

n	a(n)
1	2
2	8
3	72
4	450
5	3200
6	21632
7	149058
8	1019592
9	6993800
10	47922050
11	328499712
12	2251473408
13	15432082562
14	105772401800
15	724976569800
16	4969058770242
17	34058447431808
18	233440040239232
19	1600021920672450
20	10966713178192200
21	75166970919070472
22	515202081704384258
23	3531247605071972352

[2, 8, 72, 450, 3200, 21632, 149058, 1019592, 6993800, 47922050, 328499712, 2251473408, 15432082562, 105772401800, 724976569800, 4969058770242, 34058447431808, 233440040239232, 1600021920672450, 10966713178192200, 75166970919070472, 515202081704384258, 3531247605071972352]

cp's OEIS Frontend

A060635 a(n) is the number of 2 X 1 domino tilings of the set S in the plane R^2 consisting of the union of the following two rectangles: rectangle1: |x| <= n, |y| <= 1, rectangle2: |x| <= 1, |y| <= n.

Table of values

List of values